diff --git a/package.json b/package.json
index 6288888..43c1dcb 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "flow-typed": "^2.0.0",
     "gulp": "^3.9.1",
     "gulp-rename": "^1.2.2",
-    "mocha": "^3.2.0",
+    "mocha": "^5.0.3",
     "mockery": "^2.0.0",
     "moniker": "^0.1.2",
     "semantic-release": "^6.3.2",