diff --git a/src/Perspex.Base/Threading/Dispatcher.cs b/src/Perspex.Base/Threading/Dispatcher.cs
index e9b91f9ab9..d959151543 100644
--- a/src/Perspex.Base/Threading/Dispatcher.cs
+++ b/src/Perspex.Base/Threading/Dispatcher.cs
@@ -73,9 +73,10 @@ namespace Perspex.Threading
         /// Post action that will be invoked on main thread
         /// </summary>
         /// <param name="action">The method.</param>
-        internal void Post(Action action)
+        /// <param name="priority">The priority with which to invoke the method.</param>
+        internal void Post(Action action, DispatcherPriority priority = DispatcherPriority.Normal)
         {
-            this.mainLoop.Post(action);
+            this.mainLoop.Post(action, priority);
         }
     }
 }
\ No newline at end of file
diff --git a/src/Perspex.Base/Threading/DispatcherTimer.cs b/src/Perspex.Base/Threading/DispatcherTimer.cs
index 73335ea408..0d49bb21f8 100644
--- a/src/Perspex.Base/Threading/DispatcherTimer.cs
+++ b/src/Perspex.Base/Threading/DispatcherTimer.cs
@@ -203,7 +203,7 @@ namespace Perspex.Threading
         /// </summary>
         private void InternalTick()
         {
-            this.Dispatcher.InvokeAsync(this.RaiseTick, this.priority);
+            this.Dispatcher.Post(this.RaiseTick, this.priority);
         }
 
         /// <summary>
diff --git a/src/Perspex.Base/Threading/MainLoop.cs b/src/Perspex.Base/Threading/MainLoop.cs
index b4941118ae..3a99133d15 100644
--- a/src/Perspex.Base/Threading/MainLoop.cs
+++ b/src/Perspex.Base/Threading/MainLoop.cs
@@ -108,9 +108,11 @@ namespace Perspex.Win32.Threading
         /// Post action that will be invoked on main thread
         /// </summary>
         /// <param name="action">The method.</param>
-        internal void Post(Action action)
+        /// 
+        /// <param name="priority">The priority with which to invoke the method.</param>
+        internal void Post(Action action, DispatcherPriority priority)
         {
-            this.AddJob(new Job(action, DispatcherPriority.Normal, true));
+            this.AddJob(new Job(action, priority, true));
         }
 
         private void AddJob(Job job)