diff --git a/CHANGES.md b/CHANGES.md
index 295824417..be81d0241 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,8 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## 2.5.1
+- Fix calcul of `gitbook.state.root` when serving HTML index as `/`
 
 ## 2.5.0
 - Font settings, sharing and search are externalized as default plugins
diff --git a/package.json b/package.json
index 449158600..e098316fe 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "gitbook",
-    "version": "2.5.0",
+    "version": "2.5.1",
     "homepage": "https://www.gitbook.com",
     "description": "Library and cmd utility to generate GitBooks",
     "main": "lib/index.js",