diff --git a/FFMpegCore.Test/Utilities/BitmapSources.cs b/FFMpegCore.Test/Utilities/BitmapSources.cs
index 755f781..8965435 100644
--- a/FFMpegCore.Test/Utilities/BitmapSources.cs
+++ b/FFMpegCore.Test/Utilities/BitmapSources.cs
@@ -50,10 +50,11 @@ public static Extensions.SkiaSharp.BitmapVideoFrameWrapper CreateVideoFrame(int
         {
             var bitmap = new SKBitmap(w, h, fmt, SKAlphaType.Opaque);
 
+            using var bitmapCanvas = new SKCanvas(bitmap);
             SetVideoFramePixels(index, w, h, scaleNoise, offset, ((int x, int y, byte red, byte green, byte blue) args) =>
             {
                 var color = new SKColor(args.red, args.blue, args.green);
-                bitmap.SetPixel(args.x, args.y, color);
+                bitmapCanvas.DrawPoint(args.x, args.y, color);
             });
 
             return new Extensions.SkiaSharp.BitmapVideoFrameWrapper(bitmap);