diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7d42229..14e298b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,13 +6,6 @@
 
 * **render:** Remove getRootNode to be compatible with the lower version of Chrome, fixed [#225](https://github.com/QingWei-Li/docsify/issues/225) ([b8dd346](https://github.com/QingWei-Li/docsify/commit/b8dd346))
 
-
-### Features
-
-* **search:** Supports the max depth of the search headline, fixed [#223](https://github.com/QingWei-Li/docsify/issues/223), resolve [#129](https://github.com/QingWei-Li/docsify/issues/129) ([b7b589b](https://github.com/QingWei-Li/docsify/commit/b7b589b))
-
-
-
 <a name="4.2.3"></a>
 ## [4.2.3](https://github.com/QingWei-Li/docsify/compare/v4.2.2...v4.2.3) (2017-07-26)
 
diff --git a/build/release.sh b/build/release.sh
index ea27c07..cb242e5 100644
--- a/build/release.sh
+++ b/build/release.sh
@@ -33,7 +33,7 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
   npm version $VERSION --message "[release] $VERSION $RELEASE_TAG"
 
   # changelog
-  node_modules/.bin/conventional-changelog -p angular -i CHANGELOG.md -s -r 2
+  node_modules/.bin/conventional-changelog -p angular -i CHANGELOG.md -s -r 1
 
   git add .
   git commit -m "chore: add changelog $VERSION"