diff --git a/aspire-sample/aspire-sample.AppHost/aspire-sample.AppHost.csproj b/aspire-sample/aspire-sample.AppHost/aspire-sample.AppHost.csproj
index e604547..91d5750 100644
--- a/aspire-sample/aspire-sample.AppHost/aspire-sample.AppHost.csproj
+++ b/aspire-sample/aspire-sample.AppHost/aspire-sample.AppHost.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.5.301" />
+    <PackageReference Include="MessagePack" Version="2.5.303" />
     <ProjectReference Include="..\aspire-sample.ApiService\aspire-sample.ApiService.csproj" />
     <ProjectReference Include="..\aspire-sample.Web\aspire-sample.Web.csproj" />
   </ItemGroup>