diff --git a/src/ImageSharp/Formats/Bmp/BmpEncoderCore.cs b/src/ImageSharp/Formats/Bmp/BmpEncoderCore.cs
index 5cf54388d3..b407ad221f 100644
--- a/src/ImageSharp/Formats/Bmp/BmpEncoderCore.cs
+++ b/src/ImageSharp/Formats/Bmp/BmpEncoderCore.cs
@@ -98,7 +98,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
             this.memoryAllocator = memoryAllocator;
             this.bitsPerPixel = options.BitsPerPixel;
             this.writeV4Header = options.SupportTransparency;
-            this.quantizer = options.Quantizer ?? KnownQuantizers.Wu;
+            this.quantizer = options.Quantizer ?? KnownQuantizers.Octree;
         }
 
         /// <summary>
diff --git a/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs b/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs
index 4eb3b900e1..70079ee6e5 100644
--- a/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs
+++ b/tests/ImageSharp.Tests/Formats/Bmp/BmpEncoderTests.cs
@@ -343,7 +343,7 @@ namespace SixLabors.ImageSharp.Tests.Formats.Bmp
                 {
                     BitsPerPixel = bitsPerPixel,
                     SupportTransparency = supportTransparency,
-                    Quantizer = quantizer ?? KnownQuantizers.Wu
+                    Quantizer = quantizer ?? KnownQuantizers.Octree
                 };
 
                 // Does DebugSave & load reference CompareToReferenceInput():