diff --git a/.github/workflows/publish-slsa3.yml b/.github/workflows/publish-slsa3.yml
index b7001ae..8169e88 100644
--- a/.github/workflows/publish-slsa3.yml
+++ b/.github/workflows/publish-slsa3.yml
@@ -2,6 +2,8 @@ name: release with slsa 3 compliance
 
 on:
   push:
+    branches:
+      main
     tags:
     - '*'