diff --git a/etc/firebase-admin.auth.api.md b/etc/firebase-admin.auth.api.md
index 731deb28b6..7a1df820d6 100644
--- a/etc/firebase-admin.auth.api.md
+++ b/etc/firebase-admin.auth.api.md
@@ -381,7 +381,7 @@ export interface RecaptchaKey {
 }
 
 // @public
-export type RecaptchaKeyClientType = 'WEB';
+export type RecaptchaKeyClientType = 'WEB' | 'IOS' | 'ANDROID';
 
 // @public
 export interface RecaptchaManagedRule {
diff --git a/src/auth/auth-config.ts b/src/auth/auth-config.ts
index 0ab9f6308a..5ca4ed0b96 100644
--- a/src/auth/auth-config.ts
+++ b/src/auth/auth-config.ts
@@ -1751,9 +1751,9 @@ export interface RecaptchaManagedRule {
 }
 
 /**
- * The key's platform type: only web is currently supported.
+ * The key's platform type.
  */
-export type RecaptchaKeyClientType = 'WEB';
+export type RecaptchaKeyClientType = 'WEB' | 'IOS' | 'ANDROID';
 
 /**
  * The reCAPTCHA key config.