diff --git a/.github/workflows/compress-json-schemas.yml b/.github/workflows/compress-json-schemas.yml
index 590bd2d8..bc0dbdc0 100644
--- a/.github/workflows/compress-json-schemas.yml
+++ b/.github/workflows/compress-json-schemas.yml
@@ -6,7 +6,11 @@ name: compress-json-schemas
 on:
   # Triggers the workflow on push or pull request events but only for the main branch
   push:
+    branches:
+      - main
   pull_request:
+    branches:
+      - main
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch: