diff --git a/package.json b/package.json
index 1c0a1045..b36b6778 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
   "dependencies": {
     "async": "^2.0.1",
     "cjson": "^0.5.0",
-    "eventemitter2": "^3.0.0",
+    "eventemitter2": "^4.0.0",
     "glob": "^7.0.3",
     "lodash": "^4.6.1",
     "mu2": "~0.5.20",