diff --git a/package.json b/package.json
index d3d4481..bafbb7f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vitest-when",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "description": "Stub behaviors of Vitest mock functions with a small, readable API.",
   "keywords": [
     "tdd",