diff --git a/database/migrations/2025_07_25_150901_alter_log_session_id_length_to_128.php b/database/migrations/2025_07_25_150901_alter_log_session_id_length_to_128.php
new file mode 100644
index 0000000..52fc61c
--- /dev/null
+++ b/database/migrations/2025_07_25_150901_alter_log_session_id_length_to_128.php
@@ -0,0 +1,23 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        Schema::table('log_session', function (Blueprint $table) {
+            // id 컬럼 길이를 128로 변경
+            $table->string('id', 128)->change();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('log_session', function (Blueprint $table) {
+            // id 컬럼 길이를 원래대로 40으로 복구
+            $table->string('id', 40)->change();
+        });
+    }
+};