diff --git a/engine/src/flutter/sky/tools/roll_versions.py b/engine/src/flutter/sky/tools/roll_versions.py
index 08b4c009d1..80861c4c96 100755
--- a/engine/src/flutter/sky/tools/roll_versions.py
+++ b/engine/src/flutter/sky/tools/roll_versions.py
@@ -11,9 +11,6 @@ import xml.etree.ElementTree as ET
 
 PUBSPECS = [
     'sky/sdk/pubspec.yaml',
-    'mojo/public/dart/pubspec.yaml',
-    'mojo/dart/mojo_services/pubspec.yaml',
-    'mojo/dart/mojom/pubspec.yaml',
 ]
 
 MANIFESTS = [