diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a6e5624..8a4bbbd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,10 @@
 name: Docker build
 
-on: [pull_request, push]
+on:
+  push:
+    branches:
+      - main
+  pull_request:
 
 jobs:
   docker: