diff --git a/src/ImageSharp/Common/Exceptions/ImageProcessingException.cs b/src/ImageSharp/Common/Exceptions/ImageProcessingException.cs
index c254eaeb3..ccd0b71e5 100644
--- a/src/ImageSharp/Common/Exceptions/ImageProcessingException.cs
+++ b/src/ImageSharp/Common/Exceptions/ImageProcessingException.cs
@@ -8,7 +8,7 @@ namespace SixLabors.ImageSharp
     /// <summary>
     /// The exception that is thrown when an error occurs when applying a process to an image.
     /// </summary>
-    public class ImageProcessingException : Exception
+    public sealed class ImageProcessingException : Exception
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="ImageProcessingException"/> class.
diff --git a/src/ImageSharp/Processing/Processors/Transforms/DegenerateTransformException.cs b/src/ImageSharp/Processing/Processors/Transforms/DegenerateTransformException.cs
index 970a044dc..4d46540bc 100644
--- a/src/ImageSharp/Processing/Processors/Transforms/DegenerateTransformException.cs
+++ b/src/ImageSharp/Processing/Processors/Transforms/DegenerateTransformException.cs
@@ -8,7 +8,7 @@ namespace SixLabors.ImageSharp.Processing.Processors.Transforms
     /// <summary>
     /// Represents an error that occurs during a transform operation.
     /// </summary>
-    public sealed class DegenerateTransformException : ImageProcessingException
+    public sealed class DegenerateTransformException : Exception
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="DegenerateTransformException"/> class.