diff --git a/app/Http/Requests/Bo/Sites/StoreSiteRequest.php b/app/Http/Requests/Bo/Sites/StoreSiteRequest.php
index a55bf3c..aa87ceb 100644
--- a/app/Http/Requests/Bo/Sites/StoreSiteRequest.php
+++ b/app/Http/Requests/Bo/Sites/StoreSiteRequest.php
@@ -28,7 +28,7 @@ class StoreSiteRequest extends FormRequest
             'name' => 'required|string|min:3|max:255',
             'users' => 'nullable|array',
             'users.*.id' => 'required|exists:users,id',
-            'gitlab_project_id' => 'nullable|unique:sites,gitlab_project_id',
+            'gitlab_project_id' => 'nullable',
             'project_manager_id' => 'nullable|exists:users,id',
             'url_re7' => 'nullable|url',
             'url_prod' => 'nullable|url'
diff --git a/app/Http/Requests/Bo/Sites/UpdateSiteRequest.php b/app/Http/Requests/Bo/Sites/UpdateSiteRequest.php
index 56899c7..2f665be 100644
--- a/app/Http/Requests/Bo/Sites/UpdateSiteRequest.php
+++ b/app/Http/Requests/Bo/Sites/UpdateSiteRequest.php
@@ -4,15 +4,4 @@ namespace App\Http\Requests\Bo\Sites;
 
 class UpdateSiteRequest extends StoreSiteRequest
 {
-    /**
-     * Get the validation rules that apply to the request.
-     *
-     * @return array
-     */
-    public function rules()
-    {
-        return array_merge(parent::rules(), [
-            'gitlab_project_id' => 'nullable|unique:sites,gitlab_project_id,' . $this->route('site')->id . ',id',
-        ]);
-    }
 }
diff --git a/database/migrations/2025_08_21_123718_delete_unique_gitlab_project_id_on_site_table.php b/database/migrations/2025_08_21_123718_delete_unique_gitlab_project_id_on_site_table.php
new file mode 100644
index 0000000..5774f1f
--- /dev/null
+++ b/database/migrations/2025_08_21_123718_delete_unique_gitlab_project_id_on_site_table.php
@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('sites', function (Blueprint $table) {
+            $table->unsignedInteger('gitlab_project_id')
+                ->unique(false)
+                ->nullable()
+                ->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('sites', function (Blueprint $table) {
+            $table->unsignedInteger('gitlab_project_id')
+                ->unique(true)
+                ->nullable()
+                ->change();
+        });
+    }
+};