diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 9da4ff4..9536e35 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -4,14 +4,13 @@ on:
   push:
     branches:
       - main
-      - master
 
 jobs:
   labeler:
     runs-on: ubuntu-latest
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v3.0.2
 
       - name: Run Labeler
         uses: crazy-max/ghaction-github-labeler@v4.0.0