diff --git a/package.json b/package.json
index 15d468f..228b237 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,7 @@
     "react-scripts": "^3.1.0",
     "react-test-renderer": "^16.9.0",
     "redux-saga-test-plan": "^4.0.0-beta.3",
+    "iso-639-1": "^2.0.5",
     "typescript": "^3.5.3"
   },
   "dependencies": {