diff --git a/dev/benchmarks/complex_layout/android/app/build.gradle b/dev/benchmarks/complex_layout/android/app/build.gradle
index 9506616829..1d8e2eb834 100644
--- a/dev/benchmarks/complex_layout/android/app/build.gradle
+++ b/dev/benchmarks/complex_layout/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -40,7 +40,7 @@ android {
 
     aaptOptions {
         // TODO(goderbauer): remove when https://github.com/flutter/flutter/issues/8986 is resolved.
-        if(System.getenv("FLUTTER_CI_WIN")) {
+        if (System.getenv("FLUTTER_CI_WIN")) {
             println "AAPT cruncher disabled when running on CI, see https://github.com/flutter/flutter/issues/8986"
             cruncherEnabled false
         }
@@ -52,7 +52,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/benchmarks/complex_layout/android/build.gradle b/dev/benchmarks/complex_layout/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/benchmarks/complex_layout/android/build.gradle
+++ b/dev/benchmarks/complex_layout/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/benchmarks/complex_layout/android/gradle/wrapper/gradle-wrapper.properties b/dev/benchmarks/complex_layout/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/dev/benchmarks/complex_layout/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/benchmarks/complex_layout/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/dev/benchmarks/microbenchmarks/android/app/build.gradle b/dev/benchmarks/microbenchmarks/android/app/build.gradle
index 16c4a2a4ca..78f8d66930 100644
--- a/dev/benchmarks/microbenchmarks/android/app/build.gradle
+++ b/dev/benchmarks/microbenchmarks/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -44,7 +44,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/benchmarks/microbenchmarks/android/build.gradle b/dev/benchmarks/microbenchmarks/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/benchmarks/microbenchmarks/android/build.gradle
+++ b/dev/benchmarks/microbenchmarks/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/benchmarks/microbenchmarks/android/gradle/wrapper/gradle-wrapper.properties b/dev/benchmarks/microbenchmarks/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/dev/benchmarks/microbenchmarks/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/benchmarks/microbenchmarks/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/dev/integration_tests/channels/android/app/build.gradle b/dev/integration_tests/channels/android/app/build.gradle
index 40c3dca5d4..14c7cad239 100644
--- a/dev/integration_tests/channels/android/app/build.gradle
+++ b/dev/integration_tests/channels/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -52,7 +52,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/integration_tests/channels/android/build.gradle b/dev/integration_tests/channels/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/integration_tests/channels/android/build.gradle
+++ b/dev/integration_tests/channels/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/integration_tests/channels/android/gradle/wrapper/gradle-wrapper.properties b/dev/integration_tests/channels/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100755
--- a/dev/integration_tests/channels/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/integration_tests/channels/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/dev/integration_tests/external_ui/android/app/build.gradle b/dev/integration_tests/external_ui/android/app/build.gradle
index 30b9d45506..2dc2137baa 100644
--- a/dev/integration_tests/external_ui/android/app/build.gradle
+++ b/dev/integration_tests/external_ui/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.externalui"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -43,7 +43,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/integration_tests/external_ui/android/build.gradle b/dev/integration_tests/external_ui/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/integration_tests/external_ui/android/build.gradle
+++ b/dev/integration_tests/external_ui/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/integration_tests/external_ui/android/gradle/wrapper/gradle-wrapper.properties b/dev/integration_tests/external_ui/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/dev/integration_tests/external_ui/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/integration_tests/external_ui/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/dev/integration_tests/flavors/android/app/build.gradle b/dev/integration_tests/flavors/android/app/build.gradle
index 60a8db8a07..75653933bc 100644
--- a/dev/integration_tests/flavors/android/app/build.gradle
+++ b/dev/integration_tests/flavors/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "com.yourcompany.flavors"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -36,7 +36,7 @@ android {
             signingConfig signingConfigs.debug
         }
     }
-    
+
     aaptOptions {
         // TODO(goderbauer): remove when https://github.com/flutter/flutter/issues/8986 is resolved.
         if(System.getenv("FLUTTER_CI_WIN")) {
@@ -56,7 +56,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/integration_tests/flavors/android/build.gradle b/dev/integration_tests/flavors/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/integration_tests/flavors/android/build.gradle
+++ b/dev/integration_tests/flavors/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/integration_tests/flavors/android/gradle/wrapper/gradle-wrapper.properties b/dev/integration_tests/flavors/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/dev/integration_tests/flavors/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/integration_tests/flavors/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/dev/integration_tests/platform_interaction/android/app/build.gradle b/dev/integration_tests/platform_interaction/android/app/build.gradle
index 40c3dca5d4..14c7cad239 100644
--- a/dev/integration_tests/platform_interaction/android/app/build.gradle
+++ b/dev/integration_tests/platform_interaction/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -52,7 +52,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/integration_tests/platform_interaction/android/build.gradle b/dev/integration_tests/platform_interaction/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/integration_tests/platform_interaction/android/build.gradle
+++ b/dev/integration_tests/platform_interaction/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/integration_tests/platform_interaction/android/gradle/wrapper/gradle-wrapper.properties b/dev/integration_tests/platform_interaction/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100755
--- a/dev/integration_tests/platform_interaction/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/integration_tests/platform_interaction/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/dev/integration_tests/ui/android/app/build.gradle b/dev/integration_tests/ui/android/app/build.gradle
index 134fe518a0..4845e7812d 100644
--- a/dev/integration_tests/ui/android/app/build.gradle
+++ b/dev/integration_tests/ui/android/app/build.gradle
@@ -15,7 +15,7 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
+    compileSdkVersion 26
     buildToolsVersion '25.0.2'
 
     lintOptions {
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -44,7 +44,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/integration_tests/ui/android/build.gradle b/dev/integration_tests/ui/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/integration_tests/ui/android/build.gradle
+++ b/dev/integration_tests/ui/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/integration_tests/ui/android/gradle/wrapper/gradle-wrapper.properties b/dev/integration_tests/ui/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/dev/integration_tests/ui/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/integration_tests/ui/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/dev/manual_tests/android/app/build.gradle b/dev/manual_tests/android/app/build.gradle
index f798249aa1..db48cc7576 100644
--- a/dev/manual_tests/android/app/build.gradle
+++ b/dev/manual_tests/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -26,7 +26,7 @@ android {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         applicationId "io.flutter.examples.manual_tests"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
     }
@@ -45,7 +45,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/dev/manual_tests/android/build.gradle b/dev/manual_tests/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/dev/manual_tests/android/build.gradle
+++ b/dev/manual_tests/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/dev/manual_tests/android/gradle/wrapper/gradle-wrapper.properties b/dev/manual_tests/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100755
--- a/dev/manual_tests/android/gradle/wrapper/gradle-wrapper.properties
+++ b/dev/manual_tests/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/catalog/android/app/build.gradle b/examples/catalog/android/app/build.gradle
index 0e547471d3..b6e4e14cc4 100644
--- a/examples/catalog/android/app/build.gradle
+++ b/examples/catalog/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.catalog"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -45,7 +45,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/examples/catalog/android/build.gradle b/examples/catalog/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/catalog/android/build.gradle
+++ b/examples/catalog/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/catalog/android/gradle/wrapper/gradle-wrapper.properties b/examples/catalog/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/examples/catalog/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/catalog/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/flutter_gallery/android/app/build.gradle b/examples/flutter_gallery/android/app/build.gradle
index 2b4d1ee17b..16108350be 100644
--- a/examples/flutter_gallery/android/app/build.gradle
+++ b/examples/flutter_gallery/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.gallery"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -41,7 +41,7 @@ android {
 
     aaptOptions {
         // TODO(goderbauer): remove when https://github.com/flutter/flutter/issues/8986 is resolved.
-        if(System.getenv("FLUTTER_CI_WIN")) {
+        if (System.getenv("FLUTTER_CI_WIN")) {
             println "AAPT cruncher disabled when running on Win CI."
             cruncherEnabled false
         }
@@ -53,9 +53,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
-    androidTestCompile 'org.hamcrest:hamcrest-library:1.3'
-    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/examples/flutter_gallery/android/build.gradle b/examples/flutter_gallery/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/flutter_gallery/android/build.gradle
+++ b/examples/flutter_gallery/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/flutter_gallery/android/gradle/wrapper/gradle-wrapper.properties b/examples/flutter_gallery/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/examples/flutter_gallery/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/flutter_gallery/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/flutter_view/android/app/build.gradle b/examples/flutter_view/android/app/build.gradle
index e3d4c7a052..f04b73a209 100644
--- a/examples/flutter_view/android/app/build.gradle
+++ b/examples/flutter_view/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.flutter_view"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -45,9 +45,9 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
-    compile 'com.android.support:appcompat-v7:25.0.0'
-    compile 'com.android.support:design:25.0.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    implementation 'com.android.support:appcompat-v7:26.1.0'
+    implementation 'com.android.support:design:26.1.0'
 }
diff --git a/examples/flutter_view/android/build.gradle b/examples/flutter_view/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/flutter_view/android/build.gradle
+++ b/examples/flutter_view/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/flutter_view/android/gradle/wrapper/gradle-wrapper.properties b/examples/flutter_view/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/examples/flutter_view/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/flutter_view/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/hello_world/android/app/build.gradle b/examples/hello_world/android/app/build.gradle
index 7b3edc8d94..69cc6672ad 100644
--- a/examples/hello_world/android/app/build.gradle
+++ b/examples/hello_world/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.hello_world"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -45,7 +45,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/examples/hello_world/android/build.gradle b/examples/hello_world/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/hello_world/android/build.gradle
+++ b/examples/hello_world/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/hello_world/android/gradle/wrapper/gradle-wrapper.properties b/examples/hello_world/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/examples/hello_world/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/hello_world/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/layers/android/app/build.gradle b/examples/layers/android/app/build.gradle
index 374a20a5f5..5e501fc37a 100644
--- a/examples/layers/android/app/build.gradle
+++ b/examples/layers/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.layers"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -45,7 +45,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/examples/layers/android/build.gradle b/examples/layers/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/layers/android/build.gradle
+++ b/examples/layers/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/layers/android/gradle/wrapper/gradle-wrapper.properties b/examples/layers/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/examples/layers/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/layers/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/platform_channel/android/app/build.gradle b/examples/platform_channel/android/app/build.gradle
index 409bbfb13c..1d41591932 100644
--- a/examples/platform_channel/android/app/build.gradle
+++ b/examples/platform_channel/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.platform_channel"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -45,7 +45,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/examples/platform_channel/android/build.gradle b/examples/platform_channel/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/platform_channel/android/build.gradle
+++ b/examples/platform_channel/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/platform_channel/android/gradle/wrapper/gradle-wrapper.properties b/examples/platform_channel/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/examples/platform_channel/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/platform_channel/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/platform_view/android/app/build.gradle b/examples/platform_view/android/app/build.gradle
index e5f19bf9aa..582699e51d 100644
--- a/examples/platform_view/android/app/build.gradle
+++ b/examples/platform_view/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.platform_view"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -45,9 +45,9 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
-    compile 'com.android.support:appcompat-v7:25.0.0'
-    compile 'com.android.support:design:25.0.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    implementation 'com.android.support:appcompat-v7:26.1.0'
+    implementation 'com.android.support:design:26.1.0'
 }
diff --git a/examples/platform_view/android/build.gradle b/examples/platform_view/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/platform_view/android/build.gradle
+++ b/examples/platform_view/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/platform_view/android/gradle/wrapper/gradle-wrapper.properties b/examples/platform_view/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100644
--- a/examples/platform_view/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/platform_view/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/examples/stocks/android/app/build.gradle b/examples/stocks/android/app/build.gradle
index 78f362b494..8004808a73 100644
--- a/examples/stocks/android/app/build.gradle
+++ b/examples/stocks/android/app/build.gradle
@@ -15,8 +15,8 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
 
     lintOptions {
         disable 'InvalidPackage'
@@ -25,7 +25,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.examples.stocks"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "0.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -45,7 +45,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.4.0'
-    androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }
diff --git a/examples/stocks/android/build.gradle b/examples/stocks/android/build.gradle
index 77cbd09140..1c71b664fc 100644
--- a/examples/stocks/android/build.gradle
+++ b/examples/stocks/android/build.gradle
@@ -1,22 +1,18 @@
 buildscript {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
-        maven {
-            url "https://maven.google.com"
-        }
     }
 }
 
diff --git a/examples/stocks/android/gradle/wrapper/gradle-wrapper.properties b/examples/stocks/android/gradle/wrapper/gradle-wrapper.properties
index 45e7f14e95..aa901e1e0d 100755
--- a/examples/stocks/android/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/stocks/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/packages/flutter_tools/gradle/flutter.gradle b/packages/flutter_tools/gradle/flutter.gradle
index b466a420fa..d52dd9e6c9 100644
--- a/packages/flutter_tools/gradle/flutter.gradle
+++ b/packages/flutter_tools/gradle/flutter.gradle
@@ -18,10 +18,10 @@ import org.gradle.api.tasks.bundling.Jar
 
 buildscript {
     repositories {
-        jcenter()
         maven {
             url 'https://maven.google.com'
         }
+        jcenter()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.0.1'