diff --git a/HISTORY.md b/HISTORY.md
index 437f096a..396a6a8b 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,11 @@
+
+4.1.0 / 2016-06-09
+==================
+
+  * add prepublish command to npm scripts [@julianduque]
+  * replace `commander` with `args` (more lightweight) [@leo]
+  * improvements to build process [@leo]
+
 4.0.0 / 2016-06-07
 ==================
 
diff --git a/package.json b/package.json
index 13ef5a62..4d063447 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "micro",
-  "version": "4.0.0",
+  "version": "4.1.0",
   "description": "Async HTTP microservices",
   "author": "rauchg",
   "repository": "zeit/micro",