diff --git a/History.md b/History.md
index 7b1115c..68f7dd8 100644
--- a/History.md
+++ b/History.md
@@ -1,4 +1,10 @@
 
+0.19.0 / 2015-04-05
+==================
+
+ * `req.host` and `req.hostname` now always return a string (semi-breaking change)
+ * improved test coverage
+
 0.18.1 / 2015-03-01
 ==================
 
diff --git a/package.json b/package.json
index 67b421d..1fdb646 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "koa",
-  "version": "0.18.1",
+  "version": "0.19.0",
   "description": "Koa web app framework",
   "main": "lib/application.js",
   "scripts": {
@@ -43,7 +43,7 @@
     "vary": "^1.0.0"
   },
   "devDependencies": {
-    "babel": "^4.6.3",
+    "babel": "^5.0.0",
     "istanbul-harmony": "~0.3.0",
     "make-lint": "^1.0.1",
     "mocha": "^2.0.1",