diff --git a/.github/workflows/build_and_deploy.yaml b/.github/workflows/build_and_deploy.yaml
index adcb4bb..3f42266 100644
--- a/.github/workflows/build_and_deploy.yaml
+++ b/.github/workflows/build_and_deploy.yaml
@@ -3,7 +3,7 @@ name: Build and deploy GH Pages
 jobs:
   build:
     runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/main'
+    if: github.ref == 'refs/heads/master'
     steps:
       - name: checkout
         uses: actions/checkout@v4