diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index e17f174d4e..26b4a327b4 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -2,7 +2,16 @@
 # https://github.com/codespell-project/actions-codespell
 # https://github.com/codespell-project/codespell
 name: codespell
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - main
+      - '[0-9]+.x'
+  pull_request:
+    branches:
+      - main
+      - '[0-9]+.x'
+
 permissions:
   contents: read  #  to fetch code (actions/checkout)
 jobs: