diff --git a/app/Models/Owner.php b/app/Models/Owner.php
index 4e2b253..c287098 100644
--- a/app/Models/Owner.php
+++ b/app/Models/Owner.php
@@ -48,6 +48,6 @@ public function vehicles()
 
     public function municipality()
     {
-        return $this->belongsTo(Municipality::class, 'munic', 'id');
+        return $this->belongsTo(Municipality::class, 'munic', 'code');
     }
 }
diff --git a/database/seeders/MunicipalitySeeder.php b/database/seeders/MunicipalitySeeder.php
index 4488406..c8904d0 100644
--- a/database/seeders/MunicipalitySeeder.php
+++ b/database/seeders/MunicipalitySeeder.php
@@ -25,23 +25,23 @@ class MunicipalitySeeder extends Seeder
     public function run(): void
     {
         $municipalities = [
-            ['code' => '001', 'name' => 'Balancán'],
-            ['code' => '002', 'name' => 'Cárdenas'],
-            ['code' => '003', 'name' => 'Centla'],
-            ['code' => '004', 'name' => 'Centro'],
-            ['code' => '005', 'name' => 'Comalcalco'],
-            ['code' => '006', 'name' => 'Cunduacán'],
-            ['code' => '007', 'name' => 'Emiliano Zapata'],
-            ['code' => '008', 'name' => 'Huimanguillo'],
-            ['code' => '009', 'name' => 'Jalapa'],
-            ['code' => '010', 'name' => 'Jalpa de Méndez'],
-            ['code' => '011', 'name' => 'Jonuta'],
-            ['code' => '012', 'name' => 'Macuspana'],
-            ['code' => '013', 'name' => 'Nacajuca'],
-            ['code' => '014', 'name' => 'Paraíso'],
-            ['code' => '015', 'name' => 'Tacotalpa'],
-            ['code' => '016', 'name' => 'Teapa'],
-            ['code' => '017', 'name' => 'Tenosique'],
+            ['code' => '01', 'name' => 'Balancán'],
+            ['code' => '02', 'name' => 'Cárdenas'],
+            ['code' => '03', 'name' => 'Centla'],
+            ['code' => '04', 'name' => 'Centro'],
+            ['code' => '05', 'name' => 'Comalcalco'],
+            ['code' => '06', 'name' => 'Cunduacán'],
+            ['code' => '07', 'name' => 'Emiliano Zapata'],
+            ['code' => '08', 'name' => 'Huimanguillo'],
+            ['code' => '09', 'name' => 'Jalapa'],
+            ['code' => '10', 'name' => 'Jalpa de Méndez'],
+            ['code' => '11', 'name' => 'Jonuta'],
+            ['code' => '12', 'name' => 'Macuspana'],
+            ['code' => '13', 'name' => 'Nacajuca'],
+            ['code' => '14', 'name' => 'Paraíso'],
+            ['code' => '15', 'name' => 'Tacotalpa'],
+            ['code' => '16', 'name' => 'Teapa'],
+            ['code' => '17', 'name' => 'Tenosique'],
         ];
 
         foreach ($municipalities as $municipality) {