diff --git a/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs b/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs
index f4c3154da..9208de694 100644
--- a/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs
+++ b/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs
@@ -182,48 +182,6 @@ namespace SixLabors.ImageSharp.Tests.Formats.Bmp
                 bitsPerPixel,
                 supportTransparency: true);
 
-        [Theory]
-        [WithFile(Bit32Rgb, PixelTypes.Rgba32)]
-        public void Encode_8BitColor_WithWuQuantizer<TPixel>(TestImageProvider<TPixel> provider)
-            where TPixel : struct, IPixel<TPixel>
-        {
-            using (Image<TPixel> image = provider.GetImage())
-            {
-                var encoder = new BmpEncoder
-                                  {
-                                    BitsPerPixel = BmpBitsPerPixel.Pixel8,
-                                    Quantizer = new WuQuantizer(256)
-                                  };
-                string actualOutputFile = provider.Utility.SaveTestOutputFile(image, "bmp", encoder, appendPixelTypeToFileName: false);
-                IImageDecoder referenceDecoder = TestEnvironment.GetReferenceDecoder(actualOutputFile);
-                using (var referenceImage = Image.Load<TPixel>(actualOutputFile, referenceDecoder))
-                {
-                    referenceImage.CompareToReferenceOutput(ImageComparer.TolerantPercentage(0.01f), provider, extension: "bmp", appendPixelTypeToFileName: false);
-                }
-            }
-        }
-
-        [Theory]
-        [WithFile(Bit32Rgb, PixelTypes.Rgba32)]
-        public void Encode_8BitColor_WithOctreeQuantizer<TPixel>(TestImageProvider<TPixel> provider)
-            where TPixel : struct, IPixel<TPixel>
-        {
-            using (Image<TPixel> image = provider.GetImage())
-            {
-                var encoder = new BmpEncoder
-                                  {
-                                      BitsPerPixel = BmpBitsPerPixel.Pixel8,
-                                      Quantizer = new OctreeQuantizer(256)
-                                  };
-                string actualOutputFile = provider.Utility.SaveTestOutputFile(image, "bmp", encoder, appendPixelTypeToFileName: false);
-                IImageDecoder referenceDecoder = TestEnvironment.GetReferenceDecoder(actualOutputFile);
-                using (var referenceImage = Image.Load<TPixel>(actualOutputFile, referenceDecoder))
-                {
-                    referenceImage.CompareToReferenceOutput(ImageComparer.TolerantPercentage(0.01f), provider, extension: "bmp", appendPixelTypeToFileName: false);
-                }
-            }
-        }
-
         [Theory]
         [WithFile(TestImages.Png.GrayAlpha2BitInterlaced, PixelTypes.Rgba32, BmpBitsPerPixel.Pixel32)]
         [WithFile(Bit32Rgba, PixelTypes.Rgba32, BmpBitsPerPixel.Pixel32)]