diff --git a/stdlib/public/Concurrency/TaskStatus.cpp b/stdlib/public/Concurrency/TaskStatus.cpp
index abf34228af2f4..784bb22708b85 100644
--- a/stdlib/public/Concurrency/TaskStatus.cpp
+++ b/stdlib/public/Concurrency/TaskStatus.cpp
@@ -1139,6 +1139,9 @@ static swift_task_escalateImpl(AsyncTask *task, JobPriority newPriority) {
   auto newStatus = oldStatus;
 
   while (true) {
+    // Ensure oldPriority is up to date if we retry the compare_exchange.
+    oldPriority = oldStatus.getStoredPriority();
+
     // Fast path: check that the stored priority is already at least
     // as high as the desired priority.
     if (oldPriority >= newPriority) {