diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Org.OpenAPITools.csproj b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Org.OpenAPITools.csproj
index be69426a99e..d3f3b489b0f 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Org.OpenAPITools.csproj
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Org.OpenAPITools.csproj
@@ -26,7 +26,6 @@
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="RestSharp" Version="108.0.3" />
     <PackageReference Include="Polly" Version="7.2.3" />
-    <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
   </ItemGroup>
 
   <ItemGroup>