diff --git a/Tools/Schema.NET.Tool/Schema.NET.Tool.csproj b/Tools/Schema.NET.Tool/Schema.NET.Tool.csproj
index 66958d91..e4a9c424 100644
--- a/Tools/Schema.NET.Tool/Schema.NET.Tool.csproj
+++ b/Tools/Schema.NET.Tool/Schema.NET.Tool.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup Label="Package References">
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.11.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" />
   </ItemGroup>
 
   <!--