diff --git a/lib/web_ui/pubspec.yaml b/lib/web_ui/pubspec.yaml
index 342563e712ea5..936d0def1368c 100644
--- a/lib/web_ui/pubspec.yaml
+++ b/lib/web_ui/pubspec.yaml
@@ -23,6 +23,7 @@ dev_dependencies:
   http: 0.13.5
   http_multi_server: any
   image: 3.0.1
+  matcher: 0.12.14
   package_config: any
   path: 1.8.0
   pool: any