diff --git a/.github/workflows/pr-size-labeler.yml b/.github/workflows/pr-size-labeler.yml
index 95d01ab8c4..d6fc15b06c 100644
--- a/.github/workflows/pr-size-labeler.yml
+++ b/.github/workflows/pr-size-labeler.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Label the PR size
     steps:
-      - uses: codelytv/pr-size-labeler@v1
+      - uses: codelytv/pr-size-labeler@54ef36785e9f4cb5ecf1949cfc9b00dbb621d761 # v1
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           xs_label: 'size/xs'