diff --git a/package.json b/package.json
index 0c21671..02b591b 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   },
   "dependencies": {
     "extend-shallow": "^1.1.2",
-    "isobject": "^2.1.0"
+    "isobject": "^4.0.0"
   },
   "devDependencies": {
     "gulp-format-md": "^0.1.9",