diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 3d20f59..6739a2b 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -2,6 +2,7 @@ name: Publish JSON Schema or stac-model package via Github Release
 on:
   release:
     types: [published]
+    branches: [main]
 jobs:
   deploy-schema:
     if: startsWith(github.ref, 'refs/tags/v')