diff --git a/.github/workflows/reusable-deploy.yml b/.github/workflows/reusable-deploy.yml
index d8df592..a19ce9b 100644
--- a/.github/workflows/reusable-deploy.yml
+++ b/.github/workflows/reusable-deploy.yml
@@ -76,7 +76,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -128,10 +128,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
 
       - name: Download build artifacts
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v4
         with:
           name: deployment-package-${{ needs.detect.outputs.project-type }}
           path: ./dist
@@ -139,10 +139,17 @@ jobs:
       - name: Setup SSH key
         if: inputs.deployment-method == 'ssh' || inputs.deployment-method == 'rsync'
         run: |
+          if [ -z "${{ secrets.DEPLOY_KEY }}" ]; then
+            echo "Error: DEPLOY_KEY secret is not set"
+            exit 1
+          fi
           mkdir -p ~/.ssh
           echo "${{ secrets.DEPLOY_KEY }}" > ~/.ssh/deploy_key
           chmod 600 ~/.ssh/deploy_key
           ssh-keyscan -H "${{ secrets.DEPLOY_HOST }}" >> ~/.ssh/known_hosts
+          
+          # Ensure cleanup happens even on failure
+          trap 'rm -f ~/.ssh/deploy_key' EXIT
 
       - name: Deploy via rsync
         if: inputs.deployment-method == 'rsync'
diff --git a/.github/workflows/reusable-script-executor.yml b/.github/workflows/reusable-script-executor.yml
index 48d1d62..294ea9b 100644
--- a/.github/workflows/reusable-script-executor.yml
+++ b/.github/workflows/reusable-script-executor.yml
@@ -65,11 +65,11 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
 
       - name: Setup Python
         if: endsWith(inputs.script_path, '.py')
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ inputs.python_version }}
 
@@ -182,7 +182,7 @@ jobs:
 
       - name: Upload script output
         if: always()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v4
         with:
           name: script-output-${{ github.run_id }}
           path: |