diff --git a/dev/benchmarks/complex_layout/android/app/build.gradle b/dev/benchmarks/complex_layout/android/app/build.gradle
index 4a8ab5e563..1e4b757467 100644
--- a/dev/benchmarks/complex_layout/android/app/build.gradle
+++ b/dev/benchmarks/complex_layout/android/app/build.gradle
@@ -48,7 +48,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/dev/benchmarks/complex_layout/android/build.gradle b/dev/benchmarks/complex_layout/android/build.gradle
index 3053745fdc..14662e4330 100644
--- a/dev/benchmarks/complex_layout/android/build.gradle
+++ b/dev/benchmarks/complex_layout/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/dev/benchmarks/microbenchmarks/android/app/build.gradle b/dev/benchmarks/microbenchmarks/android/app/build.gradle
index 114a0ee109..7ecba369c4 100644
--- a/dev/benchmarks/microbenchmarks/android/app/build.gradle
+++ b/dev/benchmarks/microbenchmarks/android/app/build.gradle
@@ -40,7 +40,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/dev/benchmarks/microbenchmarks/android/build.gradle b/dev/benchmarks/microbenchmarks/android/build.gradle
index 3053745fdc..14662e4330 100644
--- a/dev/benchmarks/microbenchmarks/android/build.gradle
+++ b/dev/benchmarks/microbenchmarks/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/dev/integration_tests/channels/android/app/build.gradle b/dev/integration_tests/channels/android/app/build.gradle
index 079d53e47a..4b058ea69c 100644
--- a/dev/integration_tests/channels/android/app/build.gradle
+++ b/dev/integration_tests/channels/android/app/build.gradle
@@ -48,7 +48,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/dev/integration_tests/channels/android/build.gradle b/dev/integration_tests/channels/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/dev/integration_tests/channels/android/build.gradle
+++ b/dev/integration_tests/channels/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/dev/integration_tests/ui/android/app/build.gradle b/dev/integration_tests/ui/android/app/build.gradle
index 4e2e46b56c..ef18a0c305 100644
--- a/dev/integration_tests/ui/android/app/build.gradle
+++ b/dev/integration_tests/ui/android/app/build.gradle
@@ -40,7 +40,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/dev/integration_tests/ui/android/build.gradle b/dev/integration_tests/ui/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/dev/integration_tests/ui/android/build.gradle
+++ b/dev/integration_tests/ui/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/dev/manual_tests/android/app/build.gradle b/dev/manual_tests/android/app/build.gradle
index df50014433..57ef0e9041 100644
--- a/dev/manual_tests/android/app/build.gradle
+++ b/dev/manual_tests/android/app/build.gradle
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        
+
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "io.flutter.examples.manual_tests"
     }
@@ -43,7 +43,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/dev/manual_tests/android/build.gradle b/dev/manual_tests/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/dev/manual_tests/android/build.gradle
+++ b/dev/manual_tests/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/catalog/android/app/build.gradle b/examples/catalog/android/app/build.gradle
index 114a0ee109..7ecba369c4 100644
--- a/examples/catalog/android/app/build.gradle
+++ b/examples/catalog/android/app/build.gradle
@@ -40,7 +40,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/examples/catalog/android/build.gradle b/examples/catalog/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/examples/catalog/android/build.gradle
+++ b/examples/catalog/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/flutter_gallery/android/app/build.gradle b/examples/flutter_gallery/android/app/build.gradle
index 389b4abcc9..a478003875 100644
--- a/examples/flutter_gallery/android/app/build.gradle
+++ b/examples/flutter_gallery/android/app/build.gradle
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        
+
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "io.flutter.examples.gallery"
     }
@@ -51,7 +51,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/examples/flutter_gallery/android/build.gradle b/examples/flutter_gallery/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/examples/flutter_gallery/android/build.gradle
+++ b/examples/flutter_gallery/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/flutter_view/android/app/build.gradle b/examples/flutter_view/android/app/build.gradle
index 2e13f67b73..1b738a4f3f 100644
--- a/examples/flutter_view/android/app/build.gradle
+++ b/examples/flutter_view/android/app/build.gradle
@@ -40,7 +40,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
diff --git a/examples/flutter_view/android/build.gradle b/examples/flutter_view/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/examples/flutter_view/android/build.gradle
+++ b/examples/flutter_view/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/hello_world/android/app/build.gradle b/examples/hello_world/android/app/build.gradle
index 4916c9c46d..dc36ce3267 100644
--- a/examples/hello_world/android/app/build.gradle
+++ b/examples/hello_world/android/app/build.gradle
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        
+
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "io.flutter.examples.hello_world"
     }
@@ -43,7 +43,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/examples/hello_world/android/build.gradle b/examples/hello_world/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/examples/hello_world/android/build.gradle
+++ b/examples/hello_world/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/layers/android/app/build.gradle b/examples/layers/android/app/build.gradle
index 114a0ee109..7ecba369c4 100644
--- a/examples/layers/android/app/build.gradle
+++ b/examples/layers/android/app/build.gradle
@@ -40,7 +40,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/examples/layers/android/build.gradle b/examples/layers/android/build.gradle
index 3053745fdc..14662e4330 100644
--- a/examples/layers/android/build.gradle
+++ b/examples/layers/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/platform_channel/android/app/build.gradle b/examples/platform_channel/android/app/build.gradle
index 9790cd1675..e6b8313a8f 100644
--- a/examples/platform_channel/android/app/build.gradle
+++ b/examples/platform_channel/android/app/build.gradle
@@ -41,7 +41,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/examples/platform_channel/android/build.gradle b/examples/platform_channel/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/examples/platform_channel/android/build.gradle
+++ b/examples/platform_channel/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/platform_view/android/app/build.gradle b/examples/platform_view/android/app/build.gradle
index dbab162246..b3cc1c9a73 100644
--- a/examples/platform_view/android/app/build.gradle
+++ b/examples/platform_view/android/app/build.gradle
@@ -24,7 +24,7 @@ android {
 
     defaultConfig {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        
+
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "io.flutter.examples.platform_view"
     }
@@ -43,7 +43,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
diff --git a/examples/platform_view/android/build.gradle b/examples/platform_view/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/examples/platform_view/android/build.gradle
+++ b/examples/platform_view/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }
 
diff --git a/examples/stocks/android/app/build.gradle b/examples/stocks/android/app/build.gradle
index 93f1732f7b..1b9716702e 100644
--- a/examples/stocks/android/app/build.gradle
+++ b/examples/stocks/android/app/build.gradle
@@ -41,7 +41,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    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'
 }
diff --git a/examples/stocks/android/build.gradle b/examples/stocks/android/build.gradle
index ee5325df80..f5004b9071 100644
--- a/examples/stocks/android/build.gradle
+++ b/examples/stocks/android/build.gradle
@@ -11,6 +11,9 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://maven.google.com"
+        }
     }
 }