diff --git a/lib/web_ui/pubspec.yaml b/lib/web_ui/pubspec.yaml
index cf0233c8b85d4..ffa7d366fe8a7 100644
--- a/lib/web_ui/pubspec.yaml
+++ b/lib/web_ui/pubspec.yaml
@@ -15,6 +15,7 @@ dependencies:
     path: ../../third_party/web_unicode
 
 dev_dependencies:
+  analyzer: 5.2.0
   archive: 3.1.2
   args: any
   async: any