diff --git a/Sources/Auth/AuthClient.swift b/Sources/Auth/AuthClient.swift
index bbcb1d9c..f92cef90 100644
--- a/Sources/Auth/AuthClient.swift
+++ b/Sources/Auth/AuthClient.swift
@@ -181,6 +181,7 @@ public actor AuthClient {
       }
     }
   #else
+    @MainActor
     private func observeAppLifecycleChanges() {
       // no-op
     }