diff --git a/src/index.ts b/src/index.ts
index 10cc9e0..919bee3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,6 +1,6 @@
 export { createApp } from './app'
 export { nextTick } from './scheduler'
-export { reactive } from '@vue/reactivity'
+export { effect, reactive } from '@vue/reactivity'
 
 import { createApp } from './app'