diff --git a/db/migrations/20260603183520_create_job_sub_roles_table.php b/db/migrations/20260603183520_create_job_sub_roles_table.php
index c0c5bcc..b1d85ed 100644
--- a/db/migrations/20260603183520_create_job_sub_roles_table.php
+++ b/db/migrations/20260603183520_create_job_sub_roles_table.php
@@ -8,67 +8,117 @@ final class CreateJobSubRolesTable extends AbstractMigration
 {
     public function change(): void
     {
-        $table = $this->table('job_sub_roles', [
-            'id' => false,
-            'primary_key' => ['id'],
-            'collation' => 'utf8mb4_unicode_ci',
-            'encoding' => 'utf8mb4',
-        ]);
+        if (!$this->hasTable('job_roles')) {
+            $rolesTable = $this->table('job_roles', [
+                'id' => false,
+                'primary_key' => ['id'],
+                'collation' => 'utf8mb4_unicode_ci',
+                'encoding' => 'utf8mb4',
+            ]);
 
-        $table
-            ->addColumn('id', 'integer', [
-                'identity' => true,
-                'signed' => false,
-            ])
-            ->addColumn('job_role_id', 'integer', [
-                'signed' => false,
-                'null' => false,
-            ])
-            ->addColumn('name', 'string', [
-                'limit' => 255,
-                'null' => false,
-            ])
-            ->addColumn('description', 'text', [
-                'null' => true,
-                'default' => null,
-            ])
-            ->addColumn('sort_order', 'integer', [
-                'signed' => false,
-                'null' => false,
-                'default' => 999,
-            ])
-            ->addColumn('is_active', 'boolean', [
-                'null' => false,
-                'default' => 1,
-            ])
-            ->addColumn('created_at', 'timestamp', [
-                'null' => true,
-                'default' => 'CURRENT_TIMESTAMP',
-            ])
-            ->addColumn('updated_at', 'timestamp', [
-                'null' => true,
-                'default' => 'CURRENT_TIMESTAMP',
-                'update' => 'CURRENT_TIMESTAMP',
-            ])
-            ->addIndex(['job_role_id'], [
-                'name' => 'idx_job_sub_roles_job_role_id',
-            ])
-            ->addIndex(['is_active'], [
-                'name' => 'idx_job_sub_roles_is_active',
-            ])
-            ->addIndex(['sort_order'], [
-                'name' => 'idx_job_sub_roles_sort_order',
-            ])
-            ->addForeignKey(
-                'job_role_id',
-                'job_roles',
-                'id',
-                [
-                    'delete' => 'CASCADE',
-                    'update' => 'CASCADE',
-                    'constraint' => 'fk_job_sub_roles_job_role',
-                ]
-            )
-            ->create();
+            $rolesTable
+                ->addColumn('id', 'integer', [
+                    'identity' => true,
+                    'signed' => false,
+                ])
+                ->addColumn('name', 'string', [
+                    'limit' => 255,
+                    'null' => false,
+                ])
+                ->addColumn('description', 'text', [
+                    'null' => true,
+                    'default' => null,
+                ])
+                ->addColumn('sort_order', 'integer', [
+                    'signed' => false,
+                    'null' => false,
+                    'default' => 999,
+                ])
+                ->addColumn('is_active', 'boolean', [
+                    'null' => false,
+                    'default' => 1,
+                ])
+                ->addColumn('created_at', 'timestamp', [
+                    'null' => true,
+                    'default' => 'CURRENT_TIMESTAMP',
+                ])
+                ->addColumn('updated_at', 'timestamp', [
+                    'null' => true,
+                    'default' => 'CURRENT_TIMESTAMP',
+                    'update' => 'CURRENT_TIMESTAMP',
+                ])
+                ->addIndex(['is_active'], [
+                    'name' => 'idx_job_roles_is_active',
+                ])
+                ->addIndex(['sort_order'], [
+                    'name' => 'idx_job_roles_sort_order',
+                ])
+                ->create();
+        }
+
+        if (!$this->hasTable('job_sub_roles')) {
+            $table = $this->table('job_sub_roles', [
+                'id' => false,
+                'primary_key' => ['id'],
+                'collation' => 'utf8mb4_unicode_ci',
+                'encoding' => 'utf8mb4',
+            ]);
+
+            $table
+                ->addColumn('id', 'integer', [
+                    'identity' => true,
+                    'signed' => false,
+                ])
+                ->addColumn('job_role_id', 'integer', [
+                    'signed' => false,
+                    'null' => false,
+                ])
+                ->addColumn('name', 'string', [
+                    'limit' => 255,
+                    'null' => false,
+                ])
+                ->addColumn('description', 'text', [
+                    'null' => true,
+                    'default' => null,
+                ])
+                ->addColumn('sort_order', 'integer', [
+                    'signed' => false,
+                    'null' => false,
+                    'default' => 999,
+                ])
+                ->addColumn('is_active', 'boolean', [
+                    'null' => false,
+                    'default' => 1,
+                ])
+                ->addColumn('created_at', 'timestamp', [
+                    'null' => true,
+                    'default' => 'CURRENT_TIMESTAMP',
+                ])
+                ->addColumn('updated_at', 'timestamp', [
+                    'null' => true,
+                    'default' => 'CURRENT_TIMESTAMP',
+                    'update' => 'CURRENT_TIMESTAMP',
+                ])
+                ->addIndex(['job_role_id'], [
+                    'name' => 'idx_job_sub_roles_job_role_id',
+                ])
+                ->addIndex(['is_active'], [
+                    'name' => 'idx_job_sub_roles_is_active',
+                ])
+                ->addIndex(['sort_order'], [
+                    'name' => 'idx_job_sub_roles_sort_order',
+                ])
+                ->addForeignKey(
+                    'job_role_id',
+                    'job_roles',
+                    'id',
+                    [
+                        'delete' => 'CASCADE',
+                        'update' => 'CASCADE',
+                        'constraint' => 'fk_job_sub_roles_job_role',
+                    ]
+                )
+                ->create();
+        }
     }
 }