diff --git a/Directory.Packages.props b/Directory.Packages.props
index 295a6ba..683767d 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -11,7 +11,7 @@
     <!--Aspire Publish as Docker-Compose-->
     <PackageVersion Include="Aspire.Hosting.Docker" Version="13.4.3" />
     <!--Avoid a transitive dependency on a high vulnerability package-->
-    <PackageVersion Include="MessagePack" Version="2.5.302" />
+    <PackageVersion Include="MessagePack" Version="3.1.7" />
     <!--Hosting and Dependency Injection-->
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="10.0.9" />
     <PackageVersion Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="10.0.9" />