diff --git a/.github/workflows/CI-CD-admin-app.yml b/.github/workflows/CI-CD-admin-app.yml
index de63b8a..8b8721b 100644
--- a/.github/workflows/CI-CD-admin-app.yml
+++ b/.github/workflows/CI-CD-admin-app.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: GitHub metadata
         run: |
@@ -64,7 +64,7 @@ jobs:
           echo "Waiting for manual approval"
 
       - name: Checkout Code
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: GitHub metadata
         run: |