diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ee36b226..3c0c3d0a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -46,7 +46,6 @@ jobs:
         if: ${{ matrix.os == 'ubuntu-latest' }}
         with:
           dotnet-version: |
-            2.1.x
             5.0.x
             6.0.x
             7.0.x
diff --git a/tests/Transports.AspNetCore.Tests/Transports.AspNetCore.Tests.csproj b/tests/Transports.AspNetCore.Tests/Transports.AspNetCore.Tests.csproj
index 7efdaadd..fd243e17 100644
--- a/tests/Transports.AspNetCore.Tests/Transports.AspNetCore.Tests.csproj
+++ b/tests/Transports.AspNetCore.Tests/Transports.AspNetCore.Tests.csproj
@@ -2,7 +2,7 @@
   <Import Project="../../Tests.props" />
 
   <PropertyGroup Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' != 'true'">
-    <TargetFrameworks>netcoreapp2.1;net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
     <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
   </PropertyGroup>
   <PropertyGroup Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' == 'true'">