diff --git a/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs b/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs
index 19abcf7..043a6fa 100644
--- a/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs
+++ b/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs
@@ -56,5 +56,5 @@
 // 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.*")]
-[assembly: AssemblyVersion("0.12.0.*")]
-[assembly: AssemblyFileVersion("0.12.0.*")]
+[assembly: AssemblyVersion("0.12.1.*")]
+[assembly: AssemblyFileVersion("0.12.1.*")]
diff --git a/lib/csharp/ThriftMSBuildTask/ThriftMSBuildTask.csproj b/lib/csharp/ThriftMSBuildTask/ThriftMSBuildTask.csproj
index 68427c3..c2b631a 100644
--- a/lib/csharp/ThriftMSBuildTask/ThriftMSBuildTask.csproj
+++ b/lib/csharp/ThriftMSBuildTask/ThriftMSBuildTask.csproj
@@ -45,7 +45,7 @@
     <UpdateRequired>false</UpdateRequired>
     <MapFileExtensions>true</MapFileExtensions>
     <ApplicationRevision>0</ApplicationRevision>
-    <ApplicationVersion>0.12.0.%2a</ApplicationVersion>
+    <ApplicationVersion>0.12.1.%2a</ApplicationVersion>
     <IsWebBootstrapper>false</IsWebBootstrapper>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>