diff --git a/.github/workflows/check-licenses.yaml b/.github/workflows/check-licenses.yaml
index 59f0d20b7..99576c64f 100644
--- a/.github/workflows/check-licenses.yaml
+++ b/.github/workflows/check-licenses.yaml
@@ -2,6 +2,8 @@ name: Check licenses
 on:
   push:
   pull_request:
+    branches:
+      - main
 
 jobs:
   check: