diff --git a/lib/migrations/20180326103000-use-text-in-tokens.js b/lib/migrations/20180326103000-use-text-in-tokens.js
new file mode 100644
index 0000000..f950774
--- /dev/null
+++ b/lib/migrations/20180326103000-use-text-in-tokens.js
@@ -0,0 +1,23 @@
+'use strict'
+
+module.exports = {
+  up: function (queryInterface, Sequelize) {
+    return queryInterface.changeColumn('Users', 'accessToken', {
+      type: Sequelize.TEXT
+    }).then(function () {
+      return queryInterface.changeColumn('Users', 'refreshToken', {
+        type: Sequelize.TEXT
+      })
+    })
+  },
+
+  down: function (queryInterface, Sequelize) {
+    return queryInterface.changeColumn('Users', 'accessToken', {
+      type: Sequelize.STRING
+    }).then(function () {
+      return queryInterface.changeColumn('Users', 'refreshToken', {
+        type: Sequelize.STRING
+      })
+    })
+  }
+}
diff --git a/lib/models/user.js b/lib/models/user.js
index f421fe4..ea24972 100644
--- a/lib/models/user.js
+++ b/lib/models/user.js
@@ -26,10 +26,10 @@ module.exports = function (sequelize, DataTypes) {
       type: DataTypes.TEXT
     },
     accessToken: {
-      type: DataTypes.STRING
+      type: DataTypes.TEXT
     },
     refreshToken: {
-      type: DataTypes.STRING
+      type: DataTypes.TEXT
     },
     email: {
       type: Sequelize.TEXT,