diff --git a/src/definitions.ts b/src/definitions.ts
index d576e9f..f534874 100644
--- a/src/definitions.ts
+++ b/src/definitions.ts
@@ -93,4 +93,16 @@ export interface GoogleAuthPlugin {
    * @since 3.1.0
    * */
   initialize(options?: Partial<InitOptions>): void;
+
+  /**
+   * Add additional scopes request for user
+   * @since 3.2.0
+   * */
+  addScopes(scopes: string[]): Promise<void>;
+
+  /**
+   * Remove additional scopes request for user
+   * @since 3.2.0
+   * */
+  removeScopes(scopes: string[]): Promise<void>;
 }
diff --git a/src/web.ts b/src/web.ts
index 4be08ee..93c74aa 100644
--- a/src/web.ts
+++ b/src/web.ts
@@ -110,6 +110,16 @@ export class GoogleAuthWeb extends WebPlugin implements GoogleAuthPlugin {
     });
   }
 
+  async addScopes(scopes: string[]) {
+    // TODO: web
+    return;
+  }
+
+  async removeScopes(scopes: string[]) {
+    // TODO: web
+    return;
+  }
+
   async refresh() {
     const authResponse = await gapi.auth2.getAuthInstance().currentUser.get().reloadAuthResponse();
     return {