diff --git a/.github/workflows/publish-docker.yml b/.github/workflows/publish-docker.yml
index 32b122b..b028639 100644
--- a/.github/workflows/publish-docker.yml
+++ b/.github/workflows/publish-docker.yml
@@ -11,7 +11,7 @@ on:
     tags: ["v*.*.*"]
 
   pull_request:
-    branches: ["main"]
+    branches: ["master"]
     
 env:
   # Use docker.io for Docker Hub if empty