diff --git a/src/tools/Avalonia.Generators/Avalonia.Generators.csproj b/src/tools/Avalonia.Generators/Avalonia.Generators.csproj
index 4ebece583c..88128d6b45 100644
--- a/src/tools/Avalonia.Generators/Avalonia.Generators.csproj
+++ b/src/tools/Avalonia.Generators/Avalonia.Generators.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.9.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
   </ItemGroup>