diff --git a/.sync.yml b/.sync.yml
index 8ccaf17..68f5466 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -2,7 +2,7 @@
 .github/workflows/ci.yml:
   unmanaged: true
 Gemfile:
-  required:
+  optional:
     ':test':
       - gem: webrick
         ruby-operator: '>='