diff --git a/package.json b/package.json
index 8a7b89f..223b8da 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "codes-postaux",
-  "version": "3.7.0",
+  "version": "4.0.0",
   "description": "French postal codes API for Node.js",
   "repository": "https://github.com/BaseAdresseNationale/codes-postaux",
   "keywords": [