diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4e879044c2..c528a85e9a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,7 @@ on:
   workflow_dispatch:
   pull_request:
     types: [opened, edited, reopened, closed, synchronize]
+    branches: [main]
 
 concurrency:
     group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}