diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index f286b8d..c68788f 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -2,7 +2,7 @@ name: Docker Image CI
 
 on:
   pull_request:
-    branches: [ "main" ]
+    branches: [ "master" ]
 
 jobs:
   build: