diff --git a/Hi.Wpf.csproj b/Hi.Wpf.csproj
index b3dfb03..58b8e38 100644
--- a/Hi.Wpf.csproj
+++ b/Hi.Wpf.csproj
@@ -12,8 +12,8 @@
 			HiAPI samples for windows platform.
 		</Description>
     <Configurations>Debug;Release</Configurations>
-    <VersionBuild>29</VersionBuild>
-    <VersionPrefix>1.4.$(VersionBuild)</VersionPrefix>
+    <VersionBuild>1</VersionBuild>
+    <VersionPrefix>3.1.$(VersionBuild)</VersionPrefix>
     <PackageTags>HiAPI</PackageTags>
     <RuntimeIdentifiers>win-x64</RuntimeIdentifiers>
     <Product>$(AssemblyName)</Product>
@@ -28,7 +28,7 @@
     <ProjectReference Include="..\HiDisp\HiDisp.csproj" />
   </ItemGroup>
   <ItemGroup Condition="'$(Configuration)'=='Release'">
-    <PackageReference Include="HiDisp" Version="1.4.*" />
+    <PackageReference Include="HiDisp" Version="3.1.*" />
   </ItemGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <IsIgnoreObfuscar>true</IsIgnoreObfuscar>