diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d18266a..04c22e9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,9 +2,11 @@ name: Docs Build
 
 on:
   push:
-    branches: [ $default-branch ]
+    branches:
+    - main
   pull_request:
-    branches: [ $default-branch ]
+    branches:
+    - main
 
 jobs:
   build: