diff --git a/Assets/package.json b/Assets/package.json
index dcc0d49..0a1b80f 100644
--- a/Assets/package.json
+++ b/Assets/package.json
@@ -1,7 +1,7 @@
 {
   "name": "dev.upm-packages.extra-unirx",
   "displayName": "Extra UniRx",
-  "version": "1.4.0",
+  "version": "1.4.1",
   "unity": "2019.3",
   "description": "",
   "author": "Takuma Maruyama",