diff --git a/.gitea/workflows/ci-deploy.yml b/.gitea/workflows/ci-deploy.yml
index bf7b3da..a008cd6 100644
--- a/.gitea/workflows/ci-deploy.yml
+++ b/.gitea/workflows/ci-deploy.yml
@@ -113,9 +113,8 @@ jobs:
 
           mkdir -p /share/np-dms/app/logs
 
-          # Clear Docker build cache to ensure fresh builds
-          echo "🧹 Clearing Docker build cache..."
-          docker builder prune -f || true
+          # Note: Docker build cache is preserved for faster builds
+          # Only prune cache manually when needed: docker builder prune -f
 
           echo "🚀 Executing deployment..."
           ./scripts/deploy.sh
@@ -132,8 +131,10 @@ jobs:
             echo "🚀 Deployment attempt $attempt/$max_attempts..."
 
             if echo "$REMOTE_SCRIPT" | sshpass -p "${{ secrets.PASSWORD }}" ssh -o StrictHostKeyChecking=no \
-                -o ConnectTimeout=30 \
-                -o ServerAliveInterval=60 \
+                -o ConnectTimeout=60 \
+                -o ServerAliveInterval=30 \
+                -o ServerAliveCountMax=60 \
+                -o TCPKeepAlive=yes \
                 -p ${{ secrets.PORT }} ${{ secrets.USERNAME }}@${{ secrets.HOST }} 'bash -s'; then
               echo "✅ Deployment successful!"
               exit 0