diff --git a/package.json b/package.json
index 43b51fc..be700d8 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "express": "4.15.4",
     "helmet": "3.8.1",
     "hpp": "0.2.2",
-    "offline-plugin": "4.8.3",
+    "offline-plugin": "4.8.4",
     "prop-types": "15.5.10",
     "react": "15.6.1",
     "react-dom": "15.6.1",