diff --git a/Directory.Packages.props b/Directory.Packages.props
index c3580bfe..e06fca02 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -11,11 +11,11 @@
     <!-- <DiaMetadataVersion>0.2.185-preview-g7e1e6a442c</DiaMetadataVersion> -->
     <ApiDocsVersion>0.1.42-alpha</ApiDocsVersion>
     <CodeAnalysisVersion>4.12.0</CodeAnalysisVersion>
-    <CodeAnalysisVersion Condition="'$(IsTestProject)'!='true'">3.11.0</CodeAnalysisVersion>
+    <CodeAnalysisVersion Condition="'$(IsTestProject)'!='true'">4.12.0</CodeAnalysisVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="MessagePack" Version="2.2.85" />
-    <PackageVersion Include="MessagePackAnalyzer" Version="2.5.108" />
+    <PackageVersion Include="MessagePackAnalyzer" Version="2.5.192" />
     <PackageVersion Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="3.3.4" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Common" Version="$(CodeAnalysisVersion)" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.XUnit" Version="1.1.3-beta1.24319.1" />
@@ -45,9 +45,9 @@
   <ItemGroup Condition="'$(IsTestProject)'!='true'">
     <!-- These versions carefully chosen to support VS 2019 Update 11. -->
     <PackageVersion Update="System.Collections.Immutable" Version="5.0.0" />
-    <PackageVersion Update="System.Memory" Version="4.5.4" />
-    <PackageVersion Update="System.Reflection.Metadata" Version="5.0.0" />
-    <PackageVersion Update="System.Runtime.CompilerServices.Unsafe" Version="5.0.0" />
+    <PackageVersion Update="System.Memory" Version="4.5.5" />
+    <PackageVersion Update="System.Reflection.Metadata" Version="8.0.0" />
+    <PackageVersion Update="System.Runtime.CompilerServices.Unsafe" Version="6.1.0" />
   </ItemGroup>
   <ItemGroup>
     <!-- Put repo-specific GlobalPackageReference items in this group. -->