diff --git a/.github/workflows/pr_check_webapp_dotnet_windows.yml b/.github/workflows/pr_check_webapp_dotnet_windows.yml
index 5df3165fe..d6eb2bf80 100644
--- a/.github/workflows/pr_check_webapp_dotnet_windows.yml
+++ b/.github/workflows/pr_check_webapp_dotnet_windows.yml
@@ -68,8 +68,11 @@ jobs:
     - name: Installing dependencies and building latest changes
       run: |
         cd webapps-deploy
-        npm install
-        npm run build
+        if (-NOT(TEST-PATH node_modules))
+        {
+          npm install
+          npm run build
+        }
     
     - name: Azure authentication
       uses: azure/login@v1