diff --git a/.github/workflows/update_primary_nginx.yml b/.github/workflows/update_primary_nginx.yml
index ca82e10..7dc3006 100644
--- a/.github/workflows/update_primary_nginx.yml
+++ b/.github/workflows/update_primary_nginx.yml
@@ -26,7 +26,7 @@ jobs:
       # Copying nginx configuration file to the server
       - name: Deploy nginx configuration file
         run: |
-          sudo cp ./nginx_secfit.conf /etc/nginx/conf.d/nginx.conf
+          envsubst < ./nginx_secfit.conf > /etc/nginx/conf.d/nginx.conf
 
       # Test the nginx configuration
       - name: Test nginx configuration file