diff --git a/Directory.Packages.props b/Directory.Packages.props
index f1b8c783..0ca152ce 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -84,7 +84,7 @@
     <PackageVersion Include="OpenTelemetry.Instrumentation.GrpcNetClient" Version="1.10.0-beta.1" />
 
     <!-- Validation -->
-    <PackageVersion Include="FluentValidation" Version="11.11.0" />
+    <PackageVersion Include="FluentValidation" Version="12.1.1" />
     <PackageVersion Include="FluentValidation.DependencyInjectionExtensions" Version="11.11.0" />
 
     <!-- Identity -->
diff --git a/OrderService/OrderService.csproj b/OrderService/OrderService.csproj
index d7695c72..0e4b24b1 100644
--- a/OrderService/OrderService.csproj
+++ b/OrderService/OrderService.csproj
@@ -1,5 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <ItemGroup>
+    <PackageReference Include="FluentValidation" />
     <PackageReference Include="FluentValidation.DependencyInjectionExtensions" />
     <PackageReference Include="Google.Protobuf" />
     <PackageReference Include="Grpc.Net.ClientFactory" />