diff --git a/Source/HiveMQtt/Client/Connection/ConnectionManager.cs b/Source/HiveMQtt/Client/Connection/ConnectionManager.cs
index 5343f4d1..47da4a8f 100644
--- a/Source/HiveMQtt/Client/Connection/ConnectionManager.cs
+++ b/Source/HiveMQtt/Client/Connection/ConnectionManager.cs
@@ -197,6 +197,10 @@ internal async Task CancelBackgroundTasksAsync()
     /// </summary>
     public void Dispose()
     {
+        // Dispose managed resources.
+        this.cancellationTokenSource.Cancel();
+        this.cancellationTokenSource.Dispose();
+
         this.Dispose();
         /*
           This object will be cleaned up by the Dispose method.
diff --git a/Source/HiveMQtt/Client/HiveMQClientUtil.cs b/Source/HiveMQtt/Client/HiveMQClientUtil.cs
index 6289ea0a..63bd166b 100644
--- a/Source/HiveMQtt/Client/HiveMQClientUtil.cs
+++ b/Source/HiveMQtt/Client/HiveMQClientUtil.cs
@@ -173,11 +173,7 @@ protected virtual void Dispose(bool disposing)
                     Logger.Trace("HiveMQClient Dispose: Disconnecting connected client.");
                     _ = Task.Run(async () => await this.DisconnectAsync().ConfigureAwait(false));
                 }
-
-                // Dispose managed resources.
-                // this.cancellationTokenSource.Cancel();
-                // this.cancellationTokenSource.Dispose();
-            }
+             }
 
             // Call the appropriate methods to clean up
             // unmanaged resources here.