diff --git a/src/NativeValidation.Generator/NativeValidation.Generator.csproj b/src/NativeValidation.Generator/NativeValidation.Generator.csproj
index eff5455..defb901 100644
--- a/src/NativeValidation.Generator/NativeValidation.Generator.csproj
+++ b/src/NativeValidation.Generator/NativeValidation.Generator.csproj
@@ -18,7 +18,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.0.0" Pack="false" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.9.0" Pack="false" PrivateAssets="all" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Tests/Tests.csproj b/src/Tests/Tests.csproj
index fd3dd96..fcae8c8 100644
--- a/src/Tests/Tests.csproj
+++ b/src/Tests/Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="10.1.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.0.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.9.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0" />