diff --git a/package.json b/package.json
index 273117f8a..1e2ee6d4a 100644
--- a/package.json
+++ b/package.json
@@ -77,6 +77,7 @@
     "redux-thunk": "^1.0.2",
     "request-promise": "^4.1.1",
     "sandwich-expando": "^1.0.5",
+    "string-hash": "^1.1.0",
     "textarea-caret": "^3.0.1",
     "three.js": "^0.73.2",
     "through2": "^2.0.1",