diff --git a/package.json b/package.json
index 265c8d6..c2cbfb4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "redux-axios-middleware",
-  "version": "3.1.2",
+  "version": "4.0.0",
   "description": "Redux middleware for fetching data with axios HTTP client",
   "main": "dist/bundle.js",
   "scripts": {