diff --git a/monkey_island/cc/ui/package.json b/monkey_island/cc/ui/package.json
index e8fb04eaf..6759c4530 100644
--- a/monkey_island/cc/ui/package.json
+++ b/monkey_island/cc/ui/package.json
@@ -65,6 +65,7 @@
     "core-js": "^2.5.1",
     "fetch": "^1.1.0",
     "js-file-download": "^0.4.1",
+    "json-loader": "^0.5.7",
     "jwt-decode": "^2.2.0",
     "normalize.css": "^4.0.0",
     "prop-types": "^15.5.10",