diff --git a/Large-app-how-to.md b/Large-app-how-to.md
index a78ad1e..626e266 100644
--- a/Large-app-how-to.md
+++ b/Large-app-how-to.md
@@ -192,21 +192,21 @@ Now that we've done our object model, time to build the form that goes with it.
 ```python
     from flask.ext.wtf import Form, RecaptchaField
     from wtforms import TextField, PasswordField, BooleanField
-    from wtforms.validators import DataRequired, EqualTo, Email
+    from wtforms.validators import Required, EqualTo, Email
 
     class LoginForm(Form):
-      email = TextField('Email address', [DataRequired(), Email()])
-      password = PasswordField('Password', [DataRequired()])
+      email = TextField('Email address', [Required(), Email()])
+      password = PasswordField('Password', [Required()])
 
     class RegisterForm(Form):
-      name = TextField('NickName', [DataRequired()])
-      email = TextField('Email address', [DataRequired(), Email()])
-      password = PasswordField('Password', [DataRequired()])
+      name = TextField('NickName', [Required()])
+      email = TextField('Email address', [Required(), Email()])
+      password = PasswordField('Password', [Required()])
       confirm = PasswordField('Repeat Password', [
-          DataRequired(),
+          Required(),
           EqualTo('password', message='Passwords must match')
           ])
-      accept_tos = BooleanField('I accept the TOS', [DataRequired()])
+      accept_tos = BooleanField('I accept the TOS', [Required()])
       recaptcha = RecaptchaField()
 ```