diff --git a/stdlib/public/Concurrency/TaskSleep.swift b/stdlib/public/Concurrency/TaskSleep.swift
index 62ab2bad374a2..baad779a4df0e 100644
--- a/stdlib/public/Concurrency/TaskSleep.swift
+++ b/stdlib/public/Concurrency/TaskSleep.swift
@@ -14,10 +14,7 @@ import Swift
 
 @available(SwiftStdlib 5.5, *)
 extension Task where Success == Never, Failure == Never {
-  /// Suspends the current task for _at least_ the given duration
-  /// in nanoseconds.
-  ///
-  /// This function does _not_ block the underlying thread.
+  @available(*, deprecated, renamed: "Task.sleep(nanoseconds:)")
   public static func sleep(_ duration: UInt64) async {
     let currentTask = Builtin.getCurrentAsyncTask()
     let priority = getJobFlags(currentTask).priority ?? Task.currentPriority._downgradeUserInteractive
diff --git a/test/Concurrency/async_task_groups.swift b/test/Concurrency/async_task_groups.swift
index 49760bb104b79..9da0ded734e1f 100644
--- a/test/Concurrency/async_task_groups.swift
+++ b/test/Concurrency/async_task_groups.swift
@@ -13,7 +13,7 @@ func asyncThrowsOnCancel() async throws -> Int {
   // terrible suspend-spin-loop -- do not do this
   // only for purposes of demonstration
   while Task.isCancelled {
-    await Task.sleep(1_000_000_000)
+    try? await Task.sleep(nanoseconds: 1_000_000_000)
   }
 
   throw CancellationError()