diff --git a/package.json b/package.json
index 35d8ee07..9d0c8ea0 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
   },
   "devDependencies": {
     "@types/chai": "^4.1.2",
-    "@types/mocha": "^5.0.0",
+    "@types/mocha": "^5.2.0",
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
     "babel-eslint": "^8.2.2",