diff --git a/AssFontSubset.CoreTests/AssFontSubset.Core.Tests.csproj b/AssFontSubset.CoreTests/AssFontSubset.Core.Tests.csproj
index 9db3c5c..8337612 100644
--- a/AssFontSubset.CoreTests/AssFontSubset.Core.Tests.csproj
+++ b/AssFontSubset.CoreTests/AssFontSubset.Core.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
 
@@ -15,8 +15,8 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.6.2" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.6.2" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.6.3" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.6.3" />
   </ItemGroup>
 
   <ItemGroup>