diff --git a/budget/api.py b/budget/api.py
index ec664b6b..4b991bdf 100644
--- a/budget/api.py
+++ b/budget/api.py
@@ -29,7 +29,7 @@ def check_project(*args, **kwargs):
 class ProjectHandler(object):
 
     def add(self):
-        form = ProjectForm(csrf_enabled=False)
+        form = ProjectForm(meta={'csrf': False})
         if form.validate():
             project = form.save()
             db.session.add(project)
@@ -49,7 +49,7 @@ class ProjectHandler(object):
 
     @need_auth(check_project, "project")
     def update(self, project):
-        form = EditProjectForm(csrf_enabled=False)
+        form = EditProjectForm(meta={'csrf': False})
         if form.validate():
             form.update(project)
             db.session.commit()
@@ -69,7 +69,7 @@ class MemberHandler(object):
         return 200, project.members
 
     def add(self, project):
-        form = MemberForm(project, csrf_enabled=False)
+        form = MemberForm(project, meta={'csrf': False})
         if form.validate():
             member = Person()
             form.save(project, member)
@@ -78,7 +78,7 @@ class MemberHandler(object):
         return 400, form.errors
 
     def update(self, project, member_id):
-        form = MemberForm(project, csrf_enabled=False)
+        form = MemberForm(project, meta={'csrf': False})
         if form.validate():
             member = Person.query.get(member_id, project)
             form.save(project, member)
@@ -104,7 +104,7 @@ class BillHandler(object):
         return project.get_bills().all()
 
     def add(self, project):
-        form = get_billform_for(project, True, csrf_enabled=False)
+        form = get_billform_for(project, True, meta={'csrf': False})
         if form.validate():
             bill = Bill()
             form.save(bill, project)
@@ -114,7 +114,7 @@ class BillHandler(object):
         return 400, form.errors
 
     def update(self, project, bill_id):
-        form = get_billform_for(project, True, csrf_enabled=False)
+        form = get_billform_for(project, True, meta={'csrf': False})
         if form.validate():
             bill = Bill.query.get(project, bill_id)
             form.save(bill, project)
diff --git a/budget/default_settings.py b/budget/default_settings.py
index d5a9a9b3..5ee6de80 100644
--- a/budget/default_settings.py
+++ b/budget/default_settings.py
@@ -1,6 +1,10 @@
 DEBUG = False
 SQLALCHEMY_DATABASE_URI = 'sqlite:///budget.db'
 SQLACHEMY_ECHO = DEBUG
+# Will likely become the default value in flask-sqlalchemy >=3 ; could be removed
+# then:
+SQLALCHEMY_TRACK_MODIFICATIONS = False
+
 SECRET_KEY = "tralala"
 
 MAIL_DEFAULT_SENDER = ("Budget manager", "budget@notmyidea.org")
diff --git a/budget/forms.py b/budget/forms.py
index 69679837..f4464751 100644
--- a/budget/forms.py
+++ b/budget/forms.py
@@ -1,7 +1,7 @@
 from flask_wtf.form import FlaskForm
 from wtforms.fields.core import SelectField, SelectMultipleField
 from wtforms.fields.html5 import DateField, DecimalField
-from wtforms.fields.simple import PasswordField, SubmitField, TextAreaField, TextField
+from wtforms.fields.simple import PasswordField, SubmitField, TextAreaField, StringField
 from wtforms.validators import Email, Required, ValidationError
 from flask_babel import lazy_gettext as _
 from flask import request
@@ -38,9 +38,9 @@ class CommaDecimalField(DecimalField):
 
 
 class EditProjectForm(FlaskForm):
-    name = TextField(_("Project name"), validators=[Required()])
-    password = TextField(_("Private code"), validators=[Required()])
-    contact_email = TextField(_("Email"), validators=[Required(), Email()])
+    name = StringField(_("Project name"), validators=[Required()])
+    password = StringField(_("Private code"), validators=[Required()])
+    contact_email = StringField(_("Email"), validators=[Required(), Email()])
 
     def save(self):
         """Create a new project with the information given by this form.
@@ -62,7 +62,7 @@ class EditProjectForm(FlaskForm):
 
 
 class ProjectForm(EditProjectForm):
-    id = TextField(_("Project identifier"), validators=[Required()])
+    id = StringField(_("Project identifier"), validators=[Required()])
     password = PasswordField(_("Private code"), validators=[Required()])
     submit = SubmitField(_("Create the project"))
 
@@ -78,13 +78,13 @@ class ProjectForm(EditProjectForm):
 
 
 class AuthenticationForm(FlaskForm):
-    id = TextField(_("Project identifier"), validators=[Required()])
+    id = StringField(_("Project identifier"), validators=[Required()])
     password = PasswordField(_("Private code"), validators=[Required()])
     submit = SubmitField(_("Get in"))
 
 
 class PasswordReminder(FlaskForm):
-    id = TextField(_("Project identifier"), validators=[Required()])
+    id = StringField(_("Project identifier"), validators=[Required()])
     submit = SubmitField(_("Send me the code by email"))
 
     def validate_id(form, field):
@@ -94,7 +94,7 @@ class PasswordReminder(FlaskForm):
 
 class BillForm(FlaskForm):
     date = DateField(_("Date"), validators=[Required()], default=datetime.now)
-    what = TextField(_("What?"), validators=[Required()])
+    what = StringField(_("What?"), validators=[Required()])
     payer = SelectField(_("Payer"), validators=[Required()], coerce=int)
     amount = CommaDecimalField(_("Amount paid"), validators=[Required()])
     payed_for = SelectMultipleField(_("For whom?"),
@@ -129,7 +129,7 @@ class BillForm(FlaskForm):
 
 class MemberForm(FlaskForm):
 
-    name = TextField(_("Name"), validators=[Required()])
+    name = StringField(_("Name"), validators=[Required()])
     weight = CommaDecimalField(_("Weight"), default=1)
     submit = SubmitField(_("Add"))
 
diff --git a/budget/manage.py b/budget/manage.py
index e0b25a76..94a21a27 100755
--- a/budget/manage.py
+++ b/budget/manage.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
-from flask.ext.script import Manager
-from flask.ext.migrate import Migrate, MigrateCommand
+from flask_script import Manager
+from flask_migrate import Migrate, MigrateCommand
 
 from run import app
 from models import db
diff --git a/budget/tests.py b/budget/tests.py
index 50c01ae6..854c07b0 100644
--- a/budget/tests.py
+++ b/budget/tests.py
@@ -5,7 +5,6 @@ try:
 except ImportError:
     import unittest  # NOQA
 
-import base64
 import os
 import json
 from collections import defaultdict
@@ -17,6 +16,7 @@ from flask import session
 
 import run
 import models
+import utils
 
 
 class TestCase(unittest.TestCase):
@@ -759,7 +759,7 @@ class APITestCase(TestCase):
 
     def get_auth(self, username, password=None):
         password = password or username
-        base64string = base64.encodestring(
+        base64string = utils.base64_encode(
             ('%s:%s' % (username, password)).encode('utf-8')).decode('utf-8').replace('\n', '')
         return {"Authorization": "Basic %s" % base64string}
 
diff --git a/budget/utils.py b/budget/utils.py
index f518049c..0e6251b2 100644
--- a/budget/utils.py
+++ b/budget/utils.py
@@ -1,3 +1,4 @@
+import base64
 import re
 import inspect
 
@@ -120,3 +121,6 @@ def list_of_dicts2csv(dict_to_convert):
     if six.PY3:
         csv_file = BytesIO(csv_file.getvalue().encode('utf-8'))
     return csv_file
+
+# base64 encoding that works with both py2 and py3 and yield no warning
+base64_encode =  base64.encodestring if six.PY2 else base64.encodebytes
diff --git a/docs/conf.py b/docs/conf.py
index 17f693a2..332c3dee 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -16,5 +16,4 @@ pygments_style = 'sphinx'
 sys.path.append(os.path.abspath('_themes'))
 html_theme_path = ['_themes']
 html_theme = 'pelican'
-html_static_path = ['_static']
 html_theme_options = { 'nosidebar': True }
diff --git a/requirements.txt b/requirements.txt
index c4776f03..5820a548 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 flask>=0.11
-flask-wtf>=0.13
-flask-sqlalchemy
+flask-wtf>=0.14
+flask-sqlalchemy>=2.2,<3.0
 flask-mail>=0.8
 Flask-Migrate>=1.8.0
 flask-babel