diff --git a/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.csproj b/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.csproj
index 1e04762a..653a4ff6 100644
--- a/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.csproj
+++ b/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.csproj
@@ -42,7 +42,7 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.2.85" />
+    <PackageReference Include="MessagePack" Version="2.3.75" />
     <PackageReference Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="3.3.2" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0" />
     <PackageReference Include="Microsoft.Windows.SDK.Win32Metadata" Version="$(MetadataVersion)" GeneratePathProperty="true" PrivateAssets="none" />