diff --git a/src/PDFtoImage/Internals/SKBitmapExtensions.cs b/src/PDFtoImage/Internals/SKBitmapExtensions.cs
index c05b4c3..949640b 100644
--- a/src/PDFtoImage/Internals/SKBitmapExtensions.cs
+++ b/src/PDFtoImage/Internals/SKBitmapExtensions.cs
@@ -6,7 +6,7 @@ namespace PDFtoImage.Internals
 {
     internal static class SKBitmapExtensions
     {
-        [Obsolete("This is a workaround for the missing PNG compression in SkiaSharp 3.x. Remove this once SkiaSharp is fixed.")]
+        [Obsolete("This is a workaround for the missing PNG compression in SkiaSharp 3.x. Remove this once SkiaSharp is fixed. See GitHub issue: https://github.com/mono/SkiaSharp/issues/3013")]
         public static bool EncodeExt(this SKBitmap bitmap, Stream dst, SKEncodedImageFormat format, int quality)
         {
             if (format == SKEncodedImageFormat.Png)