diff --git a/puppetboard/app.py b/puppetboard/app.py
index 9dfe18a..fc45f1c 100644
--- a/puppetboard/app.py
+++ b/puppetboard/app.py
@@ -17,7 +17,6 @@ from flask import (
 )
 
 from pypuppetdb import connect
-from pypuppetdb.errors import EmptyResponseError
 from pypuppetdb.QueryBuilder import *
 
 from puppetboard.forms import (CatalogForm, QueryForm)
@@ -119,26 +118,6 @@ def utility_processor():
     return dict(now=now)
 
 
-#
-# 204 doesn't have a mapping in werkzeug, we need to define a custom
-# class and then set it to the mappings.
-#
-class NoContent(ex.HTTPException):
-    code = 204
-    description = '<p>No content</p'
-
-abort.mapping[204] = NoContent
-
-try:
-    @app.errorhandler(204)
-    def no_content(e):
-        return '', 204
-except KeyError:
-    @app.errorhandler(EmptyResponseError)
-    def no_content(e):
-        return '', 204
-
-
 @app.errorhandler(400)
 def bad_request(e):
     envs = environments()
diff --git a/puppetboard/forms.py b/puppetboard/forms.py
index 7628be0..72f0aba 100644
--- a/puppetboard/forms.py
+++ b/puppetboard/forms.py
@@ -1,14 +1,14 @@
 from __future__ import unicode_literals
 from __future__ import absolute_import
 
-from flask.ext.wtf import Form
+from flask_wtf import FlaskForm
 from wtforms import (
     HiddenField, RadioField, SelectField,
     TextAreaField, BooleanField, validators
 )
 
 
-class QueryForm(Form):
+class QueryForm(FlaskForm):
     """The form used to allow freeform queries to be executed against
     PuppetDB."""
     query = TextAreaField('Query', [validators.Required(
@@ -30,7 +30,7 @@ class QueryForm(Form):
     rawjson = BooleanField('Raw JSON')
 
 
-class CatalogForm(Form):
+class CatalogForm(FlaskForm):
     """The form used to compare the catalogs of different nodes."""
     compare = HiddenField('compare')
     against = SelectField('against')
diff --git a/requirements.txt b/requirements.txt
index a095b09..0f51820 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-Flask >=0.10.1
-Flask-WTF >=0.12,<=0.13
-Jinja2 >=2.7.2
+Flask >=0.12
+Flask-WTF >=0.14.2
+Jinja2 >=2.9.5
 MarkupSafe >=0.19
-WTForms >=2.0,<3.0
-Werkzeug >=0.7,<= 0.11.5
+WTForms >=2.1
+Werkzeug >=0.12.1
 itsdangerous >=0.23
 pypuppetdb >=0.3.2
-requests >=2.6.0
+requests >=2.13.0
diff --git a/test/test_app_error.py b/test/test_app_error.py
index 7b20d84..4fd7c0b 100644
--- a/test/test_app_error.py
+++ b/test/test_app_error.py
@@ -16,12 +16,6 @@ def mock_puppetdb_environments(mocker):
                                return_value=environemnts)
 
 
-def test_error_no_content():
-    result = app.no_content(None)
-    assert result[0] == ''
-    assert result[1] == 204
-
-
 def test_error_bad_request(mock_puppetdb_environments):
     with app.app.test_request_context():
         (output, error_code) = app.bad_request(None)
diff --git a/test/test_form.py b/test/test_form.py
new file mode 100644
index 0000000..35286f5
--- /dev/null
+++ b/test/test_form.py
@@ -0,0 +1,12 @@
+import pytest
+from puppetboard import app, forms
+
+
+def test_form_valid(capsys):
+    for form in [forms.QueryForm, forms.CatalogForm]:
+        with app.app.test_request_context():
+            qf = form()
+            out, err = capsys.readouterr()
+            assert qf is not None
+            assert err == ""
+            assert out == ""
diff --git a/test/test_utils.py b/test/test_utils.py
index e8e6de2..a56106f 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -12,7 +12,6 @@ from werkzeug.exceptions import NotFound, InternalServerError
 
 from puppetboard import utils
 from puppetboard import app
-from puppetboard.app import NoContent
 
 from bs4 import BeautifulSoup
 import logging
@@ -108,19 +107,6 @@ def test_http_connection_error(mock_log):
         mock_log.error.assert_called_with(err)
 
 
-def test_http_empty(mock_log, mocker):
-    err = "Empty Response"
-
-    def connection_error():
-        raise EmptyResponseError(err)
-
-    flask_abort = mocker.patch('flask.abort')
-    with pytest.raises(NoContent):
-        utils.get_or_abort(connection_error)
-        mock_log.error.assert_called_with(err)
-        flask_abort.assert_called_with('204')
-
-
 def test_db_version_good(mocker, mock_info_log):
     mocker.patch.object(app.puppetdb, 'current_version', return_value='4.2.0')
     err = 'PuppetDB Version %d.%d.%d' % (4, 2, 0)