diff --git a/packages/server/package.json b/packages/server/package.json
index 6c7624d..a2811a8 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -39,6 +39,7 @@
     "@neutrinojs/start-server": "^9.5.0",
     "debug": "^4.3.3",
     "loader-utils": "^1.4.0",
+    "source-map-loader": "^1.1.3",
     "webpack-node-externals": "2.5.2"
   },
   "devDependencies": {