diff --git a/FirebaseAuth/Sources/Swift/Utilities/AuthRecaptchaVerifier.swift b/FirebaseAuth/Sources/Swift/Utilities/AuthRecaptchaVerifier.swift
index 7fd2c8c092c..4bf7346c683 100644
--- a/FirebaseAuth/Sources/Swift/Utilities/AuthRecaptchaVerifier.swift
+++ b/FirebaseAuth/Sources/Swift/Utilities/AuthRecaptchaVerifier.swift
@@ -67,7 +67,7 @@
   }
 
   @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
-  class AuthRecaptchaVerifier: @unchecked Sendable {
+  class AuthRecaptchaVerifier {
     private(set) weak var auth: Auth?
     private(set) var agentConfig: AuthRecaptchaConfig?
     private(set) var tenantConfigs: [String: AuthRecaptchaConfig] = [:]