diff --git a/package.json b/package.json
index c3869d0..f90809b 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "eslint-plugin-node": "^9.2.0",
     "eslint-plugin-promise": "^4.0.0",
     "eslint-plugin-standard": "^4.0.0",
-    "event-stream": "^3.3.4",
+    "event-stream": "^4.0.1",
     "gulp": "^3.9.1",
     "gulp-autoprefixer": "^6.0.0",
     "gulp-babel": "^8.0.0",