diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 6847297..1e34016 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -5,9 +5,9 @@ name: Java CI with Maven
 
 on:
   push:
-    branches: [$default-branch]
+    branches: ["main"]
   pull_request:
-    branches: [$default-branch]
+    branches: ["main"]
 
 jobs:
   build: