diff --git a/package.json b/package.json
index 05d81460..32614651 100644
--- a/package.json
+++ b/package.json
@@ -50,6 +50,7 @@
     "gh-pages": "github:rschamp/gh-pages#publish-branch-to-subfolder",
     "html-webpack-plugin": "2.30.0",
     "jest": "^20.0.4",
+    "json": "^9.0.6",
     "keymirror": "0.1.1",
     "lodash.bindall": "4.4.0",
     "lodash.defaultsdeep": "4.6.0",