diff --git a/Hi.Sample.Wpf.csproj b/Hi.Sample.Wpf.csproj
index 3a5ca3b..00a8e72 100644
--- a/Hi.Sample.Wpf.csproj
+++ b/Hi.Sample.Wpf.csproj
@@ -10,7 +10,7 @@
 		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
 		<Configurations>Debug;Release</Configurations>
 		<VersionBuild>0</VersionBuild>
-		<VersionPrefix>1.4.$(VersionBuild)</VersionPrefix>
+		<VersionPrefix>3.1.$(VersionBuild)</VersionPrefix>
 		<Product>$(AssemblyName)</Product>
 		<OutputPath>bin\$(Platform).$(Configuration)\</OutputPath>
 		<DefineConstants>DEBUG;TRACE</DefineConstants>
@@ -28,8 +28,8 @@
 		<ProjectReference Include="..\Hi.Wpf\Hi.Wpf.csproj" />
 	</ItemGroup>
 	<ItemGroup Condition="'$(Configuration)'=='Release'">
-		<PackageReference Include="HiNc" Version="1.4.*" />
-		<PackageReference Include="Hi.Wpf" Version="1.4.*" />
+		<PackageReference Include="HiNc" Version="3.1.*" />
+		<PackageReference Include="Hi.Wpf" Version="3.1.*" />
 	</ItemGroup>
 	<ItemGroup>
 	  <Folder Include="Mech\" />