diff --git a/src/NetStandard/Ude.NetStandard.csproj b/src/NetStandard/Ude.NetStandard.csproj
index 56e21c2..cfe0036 100644
--- a/src/NetStandard/Ude.NetStandard.csproj
+++ b/src/NetStandard/Ude.NetStandard.csproj
@@ -13,12 +13,23 @@
     <PackageId>Ude.NetStandard</PackageId>
     <PackageTags>charset;codepage</PackageTags>
     <PackageProjectUrl>https://github.com/yinyue200/ude</PackageProjectUrl>
-    <PackageLicenseUrl>https://github.com/yinyue200/ude/blob/master/COPYING</PackageLicenseUrl>
+    <PackageLicenseUrl></PackageLicenseUrl>
     <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
     <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
     <Description>Ude.NetStandard is a compiled C# port of Mozilla Universal Charset Detector for dotnet.</Description>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
-    <Version>1.1</Version>
+    <Version>1.2</Version>
+    <SignAssembly>true</SignAssembly>
+    <AssemblyOriginatorKeyFile>yinyue200.pfx</AssemblyOriginatorKeyFile>
+    <DelaySign>false</DelaySign>
+    <PackageLicenseFile>COPYING</PackageLicenseFile>
+    <RepositoryUrl>https://github.com/yinyue200/ude</RepositoryUrl>
   </PropertyGroup>
+  <ItemGroup>
+    <None Include="..\..\COPYING">
+      <Pack>True</Pack>
+      <PackagePath></PackagePath>
+    </None>
+  </ItemGroup>
 </Project>