diff --git a/src/main/java/com/mediamanager/model/TrackHasComposer.java b/src/main/java/com/mediamanager/model/TrackHasComposer.java
index 88dc3ff..e227580 100644
--- a/src/main/java/com/mediamanager/model/TrackHasComposer.java
+++ b/src/main/java/com/mediamanager/model/TrackHasComposer.java
@@ -3,7 +3,10 @@ package com.mediamanager.model;
 import jakarta.persistence.*;
 
 @Entity
-@Table(name = "trackhascomposer")
+@Table(
+    name = "trackhascomposer",
+    uniqueConstraints = @UniqueConstraint(columnNames = {"fk_track_id", "fk_composer_id"})
+)
 public class TrackHasComposer {
 
     @Id