diff --git a/tapas-auction-house/src/main/java/ch/unisg/tapas/auctionhouse/application/port/in/LaunchAuctionCommand.java b/tapas-auction-house/src/main/java/ch/unisg/tapas/auctionhouse/application/port/in/LaunchAuctionCommand.java
index 37eb5db..626fa49 100644
--- a/tapas-auction-house/src/main/java/ch/unisg/tapas/auctionhouse/application/port/in/LaunchAuctionCommand.java
+++ b/tapas-auction-house/src/main/java/ch/unisg/tapas/auctionhouse/application/port/in/LaunchAuctionCommand.java
@@ -1,11 +1,10 @@
 package ch.unisg.tapas.auctionhouse.application.port.in;
 
 import ch.unisg.tapas.auctionhouse.domain.Auction;
-import ch.unisg.common.SelfValidating;
-import lombok.NonNull;
+import ch.unisg.tapas.common.SelfValidating;
 import lombok.Value;
 
-import javax.validation.constraint.NotNull;
+import javax.validation.constraints.NotNull;
 
 /**
  * Command for launching an auction in this auction house.