diff --git a/Hi.WpfPlus.csproj b/Hi.WpfPlus.csproj
index ea35e92..b13757b 100644
--- a/Hi.WpfPlus.csproj
+++ b/Hi.WpfPlus.csproj
@@ -12,8 +12,8 @@
 			HiAPI wpf canvas.
 		</Description>
     <Configurations>Debug;Release</Configurations>
-    <VersionBuild>0</VersionBuild>
-    <VersionPrefix>3.2.$(VersionBuild)</VersionPrefix>
+    <VersionBuild>158</VersionBuild>
+    <VersionPrefix>3.1.$(VersionBuild)</VersionPrefix>
     <PackageId>Hi.WpfPlus</PackageId>
     <PackageTags>HiAPI</PackageTags>
     <RuntimeIdentifiers>win-x64</RuntimeIdentifiers>
@@ -29,7 +29,7 @@
     <ProjectReference Include="..\HiDisp\HiDisp.csproj" />
   </ItemGroup>
   <ItemGroup Condition="'$(Configuration)'=='Release'">
-    <PackageReference Include="HiDisp" Version="3.2.*" />
+    <PackageReference Include="HiDisp" Version="3.1.*" />
   </ItemGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <IsIgnoreObfuscar>true</IsIgnoreObfuscar>