diff --git a/Directory.Packages.props b/Directory.Packages.props
index eef98277..5de9461a 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -21,7 +21,7 @@
     <PackageVersion Include="jp2masa.Avalonia.Flexbox" Version="0.2.0" />
     <PackageVersion Include="LibHac" Version="0.18.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.5.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
     <PackageVersion Include="MsgPack.Cli" Version="1.0.1" />
     <PackageVersion Include="NUnit" Version="3.13.3" />