diff --git a/CHANGELOG.md b/CHANGELOG.md
index d020b642..8f6645c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+## v0.9.1 - 2019-04-05
+
 ### Added
 
 - Allow parsing hyphen and underscore in theme meta ([#150](https://github.com/marp-team/marpit/pull/150))
diff --git a/package.json b/package.json
index c8dddb31..6cfc3042 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marp-team/marpit",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "description": "The skinny framework for creating slide deck from Markdown",
   "license": "MIT",
   "author": {