diff --git a/History.md b/History.md
index 2f95c05..0968985 100644
--- a/History.md
+++ b/History.md
@@ -1,4 +1,9 @@
 
+1.5.1 / 2018-01-25
+==================
+
+  * fix: this.handleRequest replace app.handleRequest
+
 1.5.0 / 2018-01-24
 ==================
 
diff --git a/package.json b/package.json
index c412754..cbf0c11 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "koa",
-  "version": "1.5.0",
+  "version": "1.5.1",
   "description": "Koa web app framework",
   "main": "lib/application.js",
   "scripts": {