diff --git a/Chapter-1-initial-architecture/Src/Fitnet/Contracts/SignContract/SignContractEndpoint.cs b/Chapter-1-initial-architecture/Src/Fitnet/Contracts/SignContract/SignContractEndpoint.cs
index a08fd87d..e6f5d276 100644
--- a/Chapter-1-initial-architecture/Src/Fitnet/Contracts/SignContract/SignContractEndpoint.cs
+++ b/Chapter-1-initial-architecture/Src/Fitnet/Contracts/SignContract/SignContractEndpoint.cs
@@ -4,7 +4,6 @@ namespace EvolutionaryArchitecture.Fitnet.Contracts.SignContract;
 using Events;
 using EvolutionaryArchitecture.Fitnet.Common.Events.EventBus;
 using Common.Validation.Requests;
-using PrepareContract.BusinessRules;
 
 internal static class SignContractEndpoint
 {