diff --git a/front-ui/package.json b/front-ui/package.json
index 17c3a04..596565c 100644
--- a/front-ui/package.json
+++ b/front-ui/package.json
@@ -31,6 +31,7 @@
     "react": "~0.12.2",
     "react-google-analytics": "^0.2.0",
     "react-router": "~0.11.6",
+    "sha1": "^1.1.1",
     "superagent": "~0.21.0"
   }
 }