diff --git a/Examples/Backpressure/Backpressure.cs b/Examples/Backpressure/Backpressure.cs
index d8e215f..e5c9917 100644
--- a/Examples/Backpressure/Backpressure.cs
+++ b/Examples/Backpressure/Backpressure.cs
@@ -52,7 +52,7 @@ public static async Task RunAsync()
         await sinkActor.Drain();
     }
 
-    public static async Task FreeCapacityAsync(Dictionary<int, Task> pendingWork, int maxPending)
+    private static async Task FreeCapacityAsync(Dictionary<int, Task> pendingWork, int maxPending)
     {
         if (pendingWork.Count == maxPending)
         {