diff --git a/Directory.Packages.props b/Directory.Packages.props
index b74d2b62..61137bac 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -60,8 +60,8 @@
       SDK's compiler, so it does not raise the build floor. Bump only in lockstep with the minimum supported
       .NET SDK — not to the latest Roslyn.
     -->
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.9.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="5.9.0-1.26328.17" />
   </ItemGroup>
 
   <!-- Build infrastructure. -->