diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 037fdadb..4216bd71 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -1,6 +1,8 @@
 name: Docker build and publish
 
-on: [push, pull_request]
+on:
+  push:
+    branches: main
 
 env:
   ECR_REPO: 'public.ecr.aws/s5s3h4s7'