diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3059d0b8..6dab0b2f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+<a name="1.2.4"></a>
+## [1.2.4](https://github.com/vuejs/composition-api/compare/v1.2.3...v1.2.4) (2021-10-07)
+
+
+### Bug Fixes
+
+* add `type` to component instance ([#828](https://github.com/vuejs/composition-api/issues/828)) ([b9b603f](https://github.com/vuejs/composition-api/commit/b9b603f))
+
+
+
 <a name="1.2.3"></a>
 ## [1.2.3](https://github.com/vuejs/composition-api/compare/v1.2.2...v1.2.3) (2021-10-05)
 
diff --git a/README.md b/README.md
index 174c72e7..357318d1 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ Include `@vue/composition-api` after Vue and it will install itself automaticall
 <!--cdn-links-start-->
 ```html
 <script src="https://cdn.jsdelivr.net/npm/vue@2.6"></script>
-<script src="https://cdn.jsdelivr.net/npm/@vue/composition-api@1.2.3"></script>
+<script src="https://cdn.jsdelivr.net/npm/@vue/composition-api@1.2.4"></script>
 ```
 <!--cdn-links-end-->
 
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 6cf098a7..6ec4a997 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -40,7 +40,7 @@ import { ref, reactive } from '@vue/composition-api'
 <!--cdn-links-start-->
 ```html
 <script src="https://cdn.jsdelivr.net/npm/vue@2.6"></script>
-<script src="https://cdn.jsdelivr.net/npm/@vue/composition-api@1.2.3"></script>
+<script src="https://cdn.jsdelivr.net/npm/@vue/composition-api@1.2.4"></script>
 ```
 <!--cdn-links-end-->
 
diff --git a/package.json b/package.json
index c031f3a8..79f33001 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vue/composition-api",
-  "version": "1.2.3",
+  "version": "1.2.4",
   "description": "Provide logic composition capabilities for Vue.",
   "keywords": [
     "vue",