diff --git a/package.json b/package.json
index 6f6c51eb..7d2a433c 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "chai": "^4.1.2",
     "dirty-chai": "^2.0.1",
     "eslint": "^4.11.0",
-    "mocha": "^4.0.1",
+    "mocha": "^5.0.0",
     "publish-please": "^2.2.0"
   }
 }