diff --git a/backend/Menu.AppHost/Menu.AppHost.csproj b/backend/Menu.AppHost/Menu.AppHost.csproj
index a1b070c5..5fc09f95 100644
--- a/backend/Menu.AppHost/Menu.AppHost.csproj
+++ b/backend/Menu.AppHost/Menu.AppHost.csproj
@@ -14,7 +14,7 @@
     <PackageReference Include="Aspire.Hosting.Redis" Version="13.6.4" />
     <PackageReference Include="Aspire.Hosting.SqlServer" Version="13.6.4" />
     <PackageReference Include="CommunityToolkit.Aspire.Hosting.JavaScript.Extensions" Version="13.6.0" />
-    <PackageReference Include="MessagePack" Version="2.5.307" />
+    <PackageReference Include="MessagePack" Version="3.1.12" />
     <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.20.1" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.20.1" />
     <PackageReference Include="System.Security.Cryptography.Pkcs" Version="10.0.13" />
diff --git a/backend/MenuApi.Integration.Tests/MenuApi.Integration.Tests.csproj b/backend/MenuApi.Integration.Tests/MenuApi.Integration.Tests.csproj
index 7c1c3c11..fdefbbf3 100644
--- a/backend/MenuApi.Integration.Tests/MenuApi.Integration.Tests.csproj
+++ b/backend/MenuApi.Integration.Tests/MenuApi.Integration.Tests.csproj
@@ -23,7 +23,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Aspire.Hosting.Testing" Version="13.6.4" />
-		<PackageReference Include="MessagePack" Version="2.5.307" />
+		<PackageReference Include="MessagePack" Version="3.1.12" />
 		<PackageReference Include="AutoFixture.Xunit3" Version="4.19.0" />		
 		<PackageReference Include="AwesomeAssertions" Version="9.6.0" />		
 		<PackageReference Include="AwesomeAssertions.Analyzers" Version="9.0.8">