diff --git a/package.json b/package.json
index 1dfed05f..b423a319 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@1inch/solidity-utils",
-  "version": "3.9.0",
+  "version": "4.0.0",
   "main": "dist/src/index.js",
   "types": "dist/src/index.d.ts",
   "exports": {