diff --git a/.github/workflows/backmerge-main-to-development.yml b/.github/workflows/backmerge-main-to-development.yml
index a3f7d68c..16b60cef 100644
--- a/.github/workflows/backmerge-main-to-development.yml
+++ b/.github/workflows/backmerge-main-to-development.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           fetch-depth: 0