diff --git a/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj b/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj
index c526a93ad9..9709051409 100644
--- a/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj
+++ b/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj
@@ -33,12 +33,14 @@
     <PackageReference Include="JetBrains.Annotations" Version="2022.1.0" />
     <PackageReference Include="Nito.AsyncEx.Coordination" Version="5.1.2" />
     <PackageReference Include="Nito.AsyncEx.Context" Version="5.1.2" />
+  </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFrameworkIdentifier)' == '.NETStandard' And $([MSBuild]::VersionGreaterThanOrEquals($(TargetFrameworkVersion), '2.1')) ">
+    <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
+  </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFrameworkIdentifier)' == '.NETStandard' And $([MSBuild]::VersionGreaterThanOrEquals($(TargetFrameworkVersion), '2.0')) ">
     <PackageReference Include="Nullable" Version="1.3.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
   </ItemGroup>
-  <ItemGroup Condition=" '$(TargetFrameworkIdentifier)' == '.NETStandard' And $([MSBuild]::VersionGreaterThanOrEquals($(TargetFrameworkVersion), '2.1')) ">
-    <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
-  </ItemGroup>
 </Project>