diff --git a/package.json b/package.json
index 6ef6695..cfbe7ed 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "mock-match-media",
-    "version": "0.3.0",
+    "version": "0.4.0",
     "description": "mock window.matchMedia for tests or node",
     "source": "src/index.ts",
     "main": "dist/index.js",