diff --git a/.github/workflows/docker-image-ci.yml b/.github/workflows/docker-image-ci.yml
index 226e3f4..3c0680b 100644
--- a/.github/workflows/docker-image-ci.yml
+++ b/.github/workflows/docker-image-ci.yml
@@ -4,6 +4,8 @@ on:
   pull_request:
     types: [opened, synchronize]
   push:
+    branches:
+    - master
 
 jobs:
   test: