diff --git a/README.md b/README.md
index 8951693..245ffd1 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ Find the manifest.json file in the Packages folder of your project and edit it t
 ```js
 {
   "dependencies": {
-    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#2.2.0",
+    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#2.2.1",
     ...
   },
 }