diff --git a/package.json b/package.json
index 67e5f290..584cde7a 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
     "uglify-es": "^3.1.3",
     "uglifyjs-webpack-plugin": "^1.0.0-beta.2",
     "web-ext-types": "github:michael-zapata/web-ext-types",
+    "web-ext": "^1.8.1",
     "webpack": "^3.6.0"
   },
   "scripts": {