diff --git a/docs/api/README.md b/docs/api/README.md
index ce5c87d..b847860 100644
--- a/docs/api/README.md
+++ b/docs/api/README.md
@@ -136,7 +136,7 @@ By linking the micro-application to some url rules, the function of automaticall
 
       When configured as `{strictStyleIsolation: true}`, qiankun will convert the container dom of each application to a [shadow dom](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_shadow_DOM), to ensure that the style of the application will not leak to the global.
 
-      And qiankun offered an experimental way to support css isolation, when experimentalStyleIsolation is set to true, qiankun will limit their scope of influence by add selector constraint, thereforce styles of sub-app will like following case:
+      And qiankun offered an experimental way to support css isolation, when experimentalStyleIsolation is set to true, qiankun will limit their scope of influence by add selector constraint, therefore styles of sub-app will like following case:
 
       ```css
       // if app name is react16