diff --git a/CHANGELOG.md b/CHANGELOG.md
index a21a8b4..8b3ca23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## 3.0.0
 
+## 3.1.0
+
+### Minor Changes
+
+- Export EnhancedKoa class and EnhancedKoaInstance type
+
 ## 3.0.2
 
 ### Patch Changes
diff --git a/package.json b/package.json
index 493f90a..87dce96 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@caff/koa-socket.io",
-  "version": "3.0.2",
+  "version": "3.1.0",
   "description": "Koa meets socket.io connected socket",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",