diff --git a/build/NuSpecs/ImageProcessor.Web.PostProcessor.nuspec b/build/NuSpecs/ImageProcessor.Web.PostProcessor.nuspec
index 206ba449a..9b06534ff 100644
--- a/build/NuSpecs/ImageProcessor.Web.PostProcessor.nuspec
+++ b/build/NuSpecs/ImageProcessor.Web.PostProcessor.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd">
   <metadata>
     <id>ImageProcessor.Web.PostProcessor</id>
-    <version>1.0.0.0</version>
+    <version>1.0.1.0</version>
     <title>ImageProcessor.Web.PostProcessor</title>
     <authors>James South</authors>
     <owners>James South</owners>
diff --git a/build/build.xml b/build/build.xml
index bebc352fb..a9623f9a1 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -24,7 +24,7 @@
 
   <project>
     <name>ImageProcessor Web PostProcessor</name>
-    <version>1.0.0.0</version>
+    <version>1.0.1.0</version>
     <folder>..\src\ImageProcessor.Web.PostProcessor</folder>
     <projfile>ImageProcessor.Web.PostProcessor.csproj</projfile>
     <outputs>
diff --git a/src/ImageProcessor.Web.PostProcessor/Properties/AssemblyInfo.cs b/src/ImageProcessor.Web.PostProcessor/Properties/AssemblyInfo.cs
index 7b3e6c9e5..d0ffe6879 100644
--- a/src/ImageProcessor.Web.PostProcessor/Properties/AssemblyInfo.cs
+++ b/src/ImageProcessor.Web.PostProcessor/Properties/AssemblyInfo.cs
@@ -31,6 +31,6 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+// [assembly: AssemblyVersion("1.0.1.0")]
+[assembly: AssemblyVersion("1.0.1.0")]
+[assembly: AssemblyFileVersion("1.0.1.0")]
diff --git a/src/ImageProcessor.Web.PostProcessor/Resources/Unmanaged/x86/png.cmd b/src/ImageProcessor.Web.PostProcessor/Resources/Unmanaged/x86/png.cmd
index 3b515d8b5..9308f218b 100644
--- a/src/ImageProcessor.Web.PostProcessor/Resources/Unmanaged/x86/png.cmd
+++ b/src/ImageProcessor.Web.PostProcessor/Resources/Unmanaged/x86/png.cmd
@@ -1,2 +1,2 @@
-optipng %1 -out %2 -o3 -i0 -quiet
+optipng %1 -out %2 -o3 -i0 -quiet -clobber
 pngout %2 %2 /s1 /y /v /q
\ No newline at end of file