diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f14930e..63b83a2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,9 +2,9 @@ name: Continuous Integration
 
 on:
   push:
-    branches: [$default-branch]
+    branches: [master]
   pull_request:
-    branches: [$default-branch]
+    branches: [master]
 
 jobs:
   zig-tests: