1 files changed, 1 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 658cf8c3..4e4244ae 100644
--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,7 @@ if PY2:
     py2_only_install_requires.append('mock')  # mock is in the stdlib for 3.3+
 
 install_requires = [
+    'gunicorn==19',
     'setuptools',  # TODO: is this necessary
     'python-dateutil',
     'wtforms',