diff --git a/.github/workflows/dependency-update.yml b/.github/workflows/dependency-update.yml
index 906dd86..c24a456 100644
--- a/.github/workflows/dependency-update.yml
+++ b/.github/workflows/dependency-update.yml
@@ -1,7 +1,5 @@
 name: Dependabot auto-merge
-on:
-  push:
-    branches: [ master ]
+on: pull_request
 
 permissions:
   pull-requests: write
diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index 977c4cd..81b1282 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -1,5 +1,7 @@
 name: Docker Image CI
 on:
+  push:
+    branches: [ master ]
   schedule:
   - cron: "0 * * * *"
 jobs: