diff --git a/server/migrations/20250820000001-create-initial-tables.js b/server/migrations/20250820000001-create-initial-tables.js
index ebf7562..b42d91b 100644
--- a/server/migrations/20250820000001-create-initial-tables.js
+++ b/server/migrations/20250820000001-create-initial-tables.js
@@ -151,15 +151,15 @@ module.exports = {
         allowNull: false
       },
       first_name: {
-        type: DataTypes.STRING,
+        type: Sequelize.STRING,
         allowNull: true
       },
       last_name: {
-        type: DataTypes.STRING,
+        type: Sequelize.STRING,
         allowNull: true
       },
       phone_number: {
-        type: DataTypes.STRING,
+        type: Sequelize.STRING,
         allowNull: true,
         comment: 'Phone number for SMS alerts (include country code)'
       },
@@ -179,7 +179,7 @@ module.exports = {
         comment: 'User ID from external authentication provider'
       },
       sms_alerts_enabled: {
-        type: DataTypes.BOOLEAN,
+        type: Sequelize.BOOLEAN,
         defaultValue: false,
         comment: 'Whether user wants to receive SMS alerts'
       },
@@ -189,16 +189,16 @@ module.exports = {
         comment: 'Whether user is active'
       },
       email_alerts_enabled: {
-        type: DataTypes.BOOLEAN,
+        type: Sequelize.BOOLEAN,
         defaultValue: true,
         comment: 'Whether user wants to receive email alerts'
       },
       last_login: {
-        type: DataTypes.DATE,
+        type: Sequelize.DATE,
         allowNull: true
       },
       timezone: {
-        type: DataTypes.STRING,
+        type: Sequelize.STRING,
         defaultValue: 'UTC',
         comment: 'User timezone for alert scheduling'
       },