diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 4cd45a7..1ab98be 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [ $default-branch ]
+    branches: [master]
   pull_request:
-    branches: [ $default-branch ]
+    branches: [master]
   workflow_dispatch: {}
 
 jobs: