diff --git a/apps/nginx-proxy-manager/install.sh b/apps/nginx-proxy-manager/install.sh
index 159a749..6e9ffa0 100644
--- a/apps/nginx-proxy-manager/install.sh
+++ b/apps/nginx-proxy-manager/install.sh
@@ -217,9 +217,9 @@ step_start "Nginx Proxy Manager" "Downloading" "Downloaded"
 
 step_start "Enviroment" "Setting up" "Setup"
   # Update NPM version in package.json files
-  sed -i "s+0.0.0+$NPM_VERSION+g" backend/package.json
-  sed -i "s+0.0.0+$NPM_VERSION+g" frontend/package.json
-
+  sed -i "s/\"version\": \"0.0.0\"/\"version\": \"$NPM_VERSION\"/" backend/package.json
+  sed -i "s/\"version\": \"0.0.0\"/\"version\": \"$NPM_VERSION\"/" frontend/package.json
+  
   # Fix nginx config files for use with openresty defaults
   sed -i 's/user npm/user root/g; s/^pid/#pid/g; s+^daemon+#daemon+g' docker/rootfs/etc/nginx/nginx.conf
   sed -i 's/include-system-site-packages = false/include-system-site-packages = true/g' /opt/certbot/pyvenv.cfg