diff --git a/BACKEND/database/migrations/2024_08_02_025714_create_categories_table.php b/BACKEND/database/migrations/2024_08_02_025714_create_categories_table.php
index b66a4c1..49ae1a5 100644
--- a/BACKEND/database/migrations/2024_08_02_025714_create_categories_table.php
+++ b/BACKEND/database/migrations/2024_08_02_025714_create_categories_table.php
@@ -27,7 +27,7 @@ return new class extends Migration
                 'c_code' => 'S',
                 'c_name' => 'Buổi Sáng',
                 'c_type' => 'TIME_TYPE',
-                'c_value' => null,
+                'c_value' => "0.5",
                 'c_active' => 1,
                 'created_at' => now(),
                 'updated_at' => now(),
@@ -36,7 +36,7 @@ return new class extends Migration
                 'c_code' => 'C',
                 'c_name' => 'Buổi Chiều',
                 'c_type' => 'TIME_TYPE',
-                'c_value' => null,
+                'c_value' => "0.5",
                 'c_active' => 1,
                 'created_at' => now(),
                 'updated_at' => now(),
@@ -45,7 +45,7 @@ return new class extends Migration
                 'c_code' => 'ALL',
                 'c_name' => 'Cả Ngày',
                 'c_type' => 'TIME_TYPE',
-                'c_value' => null,
+                'c_value' => "1",
                 'c_active' => 1,
                 'created_at' => now(),
                 'updated_at' => now(),