diff --git a/.node-version b/.node-version
index 97d6bca..fe6d2ac 100644
--- a/.node-version
+++ b/.node-version
@@ -1 +1 @@
-9.10.1
+10.9.0
diff --git a/package.json b/package.json
index 6c17bd0..fbac446 100644
--- a/package.json
+++ b/package.json
@@ -63,6 +63,7 @@
     "uglifyjs-webpack-plugin": "1.0.0-beta.2"
   },
   "engines": {
-    "node": "^9.10.1"
+    "node": "^10.9.0",
+    "npm": "^5.6.0"
   }
 }