diff --git a/Directory.Packages.props b/Directory.Packages.props
index 2d50fe1cc8..7f71c349a3 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -12,7 +12,7 @@
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="5.0.0" />
     <PackageVersion Include="Microsoft.Bcl.HashCode" Version="1.1.1" />
 
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.3.1" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.2" />
 
     <!-- Plugins -->