diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9daa0d33..35d48d19 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,20 @@
+# [1.0.0-alpha.22](https://github.com/vuejs/vitepress/compare/v1.0.0-alpha.21...v1.0.0-alpha.22) (2022-10-22)
+
+
+### Bug Fixes
+
+* **types:** change ComponentOptions to DefineComponent ([#1499](https://github.com/vuejs/vitepress/issues/1499)) ([5711660](https://github.com/vuejs/vitepress/commit/57116607b83f79e62f399cd6430b0d80524861a3))
+
+
+### Features
+
+* expose isDark ([#1525](https://github.com/vuejs/vitepress/issues/1525)) ([d327811](https://github.com/vuejs/vitepress/commit/d327811fd5b333a73d77730b6b0b347e3d052ebc))
+* **theme:** allow defining dark as the default theme ([#1498](https://github.com/vuejs/vitepress/issues/1498)) ([d404753](https://github.com/vuejs/vitepress/commit/d404753005bf4cc3bb645553ac473d08c6473180))
+* **theme:** support html strings for SidebarGroup headings, SidebarItem text ([#1489](https://github.com/vuejs/vitepress/issues/1489)) ([946c579](https://github.com/vuejs/vitepress/commit/946c579f2b8957839b8e0ef3474bded5ad06de1a))
+* transformPageData hook ([#1492](https://github.com/vuejs/vitepress/issues/1492)) ([afeb06f](https://github.com/vuejs/vitepress/commit/afeb06f17cbd439e3e0151f9571107754fe98b57))
+
+
+
 # [1.0.0-alpha.21](https://github.com/vuejs/vitepress/compare/v1.0.0-alpha.20...v1.0.0-alpha.21) (2022-10-14)
 
 
diff --git a/package.json b/package.json
index f82af5be..dbacbcb0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vitepress",
-  "version": "1.0.0-alpha.21",
+  "version": "1.0.0-alpha.22",
   "description": "Vite & Vue powered static site generator",
   "type": "module",
   "packageManager": "pnpm@7.9.2",