diff --git a/package.json b/package.json
index a0dccb6..6977641 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "retext-keywords",
-  "version": "3.1.0",
+  "version": "4.0.0",
   "description": "Keyword extraction with Retext",
   "license": "MIT",
   "keywords": [