diff --git a/build/Build.bat b/build/Build.bat
index 397ddf7e3..436d2ba1c 100644
--- a/build/Build.bat
+++ b/build/Build.bat
@@ -1,5 +1,5 @@
 @ECHO OFF
-SET version=1.9.0.0
+SET version=1.9.1.0
 SET webversion=3.2.4.0
 SET webconfigversion=1.1.0.0
 
diff --git a/src/ImageProcessor/Imaging/Quantizer.cs b/src/ImageProcessor/Imaging/Quantizer.cs
index 8241397e3..30c8bea4b 100644
--- a/src/ImageProcessor/Imaging/Quantizer.cs
+++ b/src/ImageProcessor/Imaging/Quantizer.cs
@@ -131,7 +131,7 @@ namespace ImageProcessor.Imaging
                 for (int col = 0; col < width; col++)
                 {
                     this.InitialQuantizePixel(new Color32(sourcePixel));
-                    sourcePixel = (IntPtr)((int)sourcePixel + this.pixelSize);
+                    sourcePixel = (IntPtr)((long)sourcePixel + this.pixelSize);
                 }
 
                 // Now I have the pixel, call the FirstPassQuantize function...
diff --git a/src/ImageProcessor/Properties/AssemblyInfo.cs b/src/ImageProcessor/Properties/AssemblyInfo.cs
index 0e7ded17b..e7e793a69 100644
--- a/src/ImageProcessor/Properties/AssemblyInfo.cs
+++ b/src/ImageProcessor/Properties/AssemblyInfo.cs
@@ -32,6 +32,6 @@ using System.Security;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("1.9.0.0")]
-[assembly: AssemblyFileVersion("1.9.0.0")]
+[assembly: AssemblyVersion("1.9.1.0")]
+[assembly: AssemblyFileVersion("1.9.1.0")]