diff --git a/test/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests.csproj b/test/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests.csproj
index f288484..75cf2a0 100644
--- a/test/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests.csproj
+++ b/test/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests/TunnelVisionLabs.LanguageTypes.SourceGenerator.UnitTests.csproj
@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.msbuild" Version="3.1.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis" Version="4.0.1" />
+    <PackageReference Include="Microsoft.CodeAnalysis" Version="4.5.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.XUnit" Version="1.1.1-beta1.21615.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
     <PackageReference Include="xunit" Version="2.4.1" />