diff --git a/HISTORY.md b/HISTORY.md
index ba0f4cb..de70d37 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,8 @@
+2.x
+===
+
+  * Drop support for Node.js below 0.10
+
 1.3.2 / 2017-09-24
 ==================
 
diff --git a/index.js b/index.js
index e2369b5..0011f94 100644
--- a/index.js
+++ b/index.js
@@ -28,11 +28,6 @@ var setPrototypeOf = require('setprototypeof')
 
 var slice = Array.prototype.slice
 
-/* istanbul ignore next */
-var defer = typeof setImmediate === 'function'
-  ? setImmediate
-  : function(fn){ process.nextTick(fn.bind.apply(fn, arguments)) }
-
 /**
  * Expose `Router`.
  */
@@ -208,13 +203,13 @@ Router.prototype.handle = function handle(req, res, callback) {
 
     // signal to exit router
     if (layerError === 'router') {
-      defer(done, null)
+      setImmediate(done, null)
       return
     }
 
     // no more matching layers
     if (idx >= stack.length) {
-      defer(done, layerError)
+      setImmediate(done, layerError)
       return
     }
 
diff --git a/package.json b/package.json
index e4fb77c..aca43d8 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "index.js"
   ],
   "engines": {
-    "node": ">= 0.8"
+    "node": ">= 0.10"
   },
   "scripts": {
     "lint": "eslint --plugin markdown --ext js,md .",