diff --git a/src/Orders.PubSub/Orders.PubSub.csproj b/src/Orders.PubSub/Orders.PubSub.csproj
index 0f3f730..d5e66df 100644
--- a/src/Orders.PubSub/Orders.PubSub.csproj
+++ b/src/Orders.PubSub/Orders.PubSub.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.1.115" />
+    <PackageReference Include="MessagePack" Version="2.5.187" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.1.4" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="3.1.4" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="3.1.4" />