diff --git a/app/adapters/mem/src/main/java/it/mulders/traqqr/mem/vehicles/InMemoryVehicleRepository.java b/app/adapters/mem/src/main/java/it/mulders/traqqr/mem/vehicles/InMemoryVehicleRepository.java
index a38aa31..8d602f1 100644
--- a/app/adapters/mem/src/main/java/it/mulders/traqqr/mem/vehicles/InMemoryVehicleRepository.java
+++ b/app/adapters/mem/src/main/java/it/mulders/traqqr/mem/vehicles/InMemoryVehicleRepository.java
@@ -5,7 +5,10 @@
 import it.mulders.traqqr.domain.vehicles.VehicleRepository;
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.inject.Named;
-import java.util.*;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Optional;
+import java.util.Set;
 import java.util.stream.Collectors;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;