diff --git a/.github/workflows/deploy-DEV.yml b/.github/workflows/deploy-DEV.yml
index f1c7e03a..35760ab0 100644
--- a/.github/workflows/deploy-DEV.yml
+++ b/.github/workflows/deploy-DEV.yml
@@ -38,7 +38,7 @@ jobs:
       # Checkout the code base #
       ##########################
       - name: Checkout Code
-        uses: actions/checkout@master
+        uses: actions/checkout@v2
 
       #####################
       # Run Deploy script #