diff --git a/.github/workflows/compatibility_test.yaml b/.github/workflows/compatibility_test.yaml
index afbc80a..bfa0ac9 100644
--- a/.github/workflows/compatibility_test.yaml
+++ b/.github/workflows/compatibility_test.yaml
@@ -3,7 +3,7 @@ name: compatibility_test
 on:
   push:
     branches-ignore:
-    - 'main'
+    - main
 
 jobs:
   compatibility_test: