diff --git a/packages/docs/src/guide-composable/setup.md b/packages/docs/src/guide-composable/setup.md
index 5a1135a..d92183c 100644
--- a/packages/docs/src/guide-composable/setup.md
+++ b/packages/docs/src/guide-composable/setup.md
@@ -14,6 +14,8 @@ Or:
 yarn add @vue/apollo-composable
 ```
 
+Note: `@vue/apollo-composable` supports Vue 2 thanks to [Vue Demi](https://github.com/vueuse/vue-demi).
+
 ## 2. Connect Apollo Client to Vue
 
 ### Vue 2