diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5903f9f..13135b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## [3.1.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/3.1.0...3.1.1) (2020-11-09)
+
+
+### Bug Fixes
+
+* error on build in Unity 2019.3.11-15 ([68669c7](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/68669c739676f2354db4913a0e2296ab1715ee1f)), closes [#114](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/114)
+* null Reference when creating New Scene after Prefab was open in PrefabMode ([22bcecd](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/22bcecd0abd6ad651fcf066e5c9efe9a43fd217a)), closes [#111](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/111)
+
 # [3.1.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/3.0.1...3.1.0) (2020-10-28)
 
 
diff --git a/package.json b/package.json
index f089c2a..c6597ee 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {