diff --git a/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj b/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj
index def4aa417d..3cf595367d 100644
--- a/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj
+++ b/framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj
@@ -4,7 +4,7 @@
   <Import Project="..\..\..\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net8.0;net9.0;net10.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net8.0;net9.0;net10.0</TargetFrameworks>
     <Nullable>enable</Nullable>
     <WarningsAsErrors>Nullable</WarningsAsErrors>
     <AssemblyName>Volo.Abp.Core</AssemblyName>