diff --git a/README.md b/README.md
index 6ba7428..68f0fd7 100644
--- a/README.md
+++ b/README.md
@@ -218,6 +218,17 @@ getUserInfo(accessToken).then((resp) => {
 });
 ```
 
+#### Refresh access token
+
+You could use a refresh token, to get a new token from the oauth server when token expired.
+
+```typescript
+sdk.refreshAccessToken(refreshToken).then((resp) => {
+    const token = resp.access_token;
+    // Do stuff with new access token
+});
+```
+
 #### A note on Storage
 By default, this package will use sessionStorage to persist the pkce_state. On (mostly) mobile devices there's a higher chance users are returning in a different browser tab. E.g. they kick off in a WebView & get redirected to a new tab. The sessionStorage will be empty there.
 
diff --git a/src/sdk.ts b/src/sdk.ts
index ae09b24..ce797b0 100644
--- a/src/sdk.ts
+++ b/src/sdk.ts
@@ -352,6 +352,10 @@ class Sdk {
             throw new Error(error.message);
         }
     }
+
+    public refreshAccessToken(refreshToken: string): Promise<ITokenResponse> {
+        return this.pkce.refreshAccessToken(refreshToken);
+    }
 }
 
 export default Sdk;