diff --git a/database/migrations/2018_08_05_062733_add_timestamp_for_receiver.php b/database/migrations/2018_08_05_062733_add_timestamp_for_receiver.php
new file mode 100644
index 0000000..466cba9
--- /dev/null
+++ b/database/migrations/2018_08_05_062733_add_timestamp_for_receiver.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddTimestampForReceiver extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('Receiver', function (Blueprint $table) {
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('Receiver', function (Blueprint $table) {
+            $table->dropTimestamps();
+        });
+    }
+}
diff --git a/database/migrations/2018_08_05_062842_add_timestamp_for_casebuilder.php b/database/migrations/2018_08_05_062842_add_timestamp_for_casebuilder.php
new file mode 100644
index 0000000..3909912
--- /dev/null
+++ b/database/migrations/2018_08_05_062842_add_timestamp_for_casebuilder.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddTimestampForCasebuilder extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('CaseBuilder', function (Blueprint $table) {
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('CaseBuilder', function (Blueprint $table) {
+            $table->dropTimestamps();
+        });
+    }
+}