diff --git a/src/HeboTech.ATLib.TestConsole/HeboTech.ATLib.TestConsole.csproj b/src/HeboTech.ATLib.TestConsole/HeboTech.ATLib.TestConsole.csproj
index b17c8d0..9856d08 100644
--- a/src/HeboTech.ATLib.TestConsole/HeboTech.ATLib.TestConsole.csproj
+++ b/src/HeboTech.ATLib.TestConsole/HeboTech.ATLib.TestConsole.csproj
@@ -5,10 +5,6 @@
 		<TargetFramework>net9.0</TargetFramework>
 	</PropertyGroup>
 
-	<PropertyGroup Condition=" '$(TargetFramework)' == 'net48' ">
-		<LangVersion>9.0</LangVersion>
-	</PropertyGroup>
-
 	<ItemGroup>
 		<PackageReference Include="System.IO.Ports" Version="9.0.0" />
 	</ItemGroup>
diff --git a/src/HeboTech.ATLib.Tests/HeboTech.ATLib.Tests.csproj b/src/HeboTech.ATLib.Tests/HeboTech.ATLib.Tests.csproj
index 2cfb98a..b12f58f 100644
--- a/src/HeboTech.ATLib.Tests/HeboTech.ATLib.Tests.csproj
+++ b/src/HeboTech.ATLib.Tests/HeboTech.ATLib.Tests.csproj
@@ -5,10 +5,6 @@
 		<IsPackable>false</IsPackable>
 	</PropertyGroup>
 
-	<PropertyGroup Condition=" '$(TargetFramework)' == 'net48' ">
-		<LangVersion>9.0</LangVersion>
-	</PropertyGroup>
-
 	<ItemGroup>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
 		<PackageReference Include="Moq" Version="4.20.72" />