diff --git a/packages/multisite/package.json b/packages/multisite/package.json
index a395706..9e117ba 100755
--- a/packages/multisite/package.json
+++ b/packages/multisite/package.json
@@ -19,7 +19,7 @@
   ],
   "dependencies": {
     "cookie": "^0.3.1",
-    "deepmerge": "2.2.1",
+    "deepmerge": "4.3.1",
     "js-cookie": "^2.2.0"
   },
   "devDependencies": {