diff --git a/src/Microsoft.VisualStudio.Composition.Analyzers/Microsoft.VisualStudio.Composition.Analyzers.csproj b/src/Microsoft.VisualStudio.Composition.Analyzers/Microsoft.VisualStudio.Composition.Analyzers.csproj
index f9f43f524..84066531a 100644
--- a/src/Microsoft.VisualStudio.Composition.Analyzers/Microsoft.VisualStudio.Composition.Analyzers.csproj
+++ b/src/Microsoft.VisualStudio.Composition.Analyzers/Microsoft.VisualStudio.Composition.Analyzers.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="2.10.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.3.1" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" PrivateAssets="all" />
   </ItemGroup>