diff --git a/tox.ini b/tox.ini
index cc591dc747..585e528bc7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,7 @@ envlist =
     {pypy,py2.7,py3.4}-django-1.7
     {pypy,py2.7}-django-1.6
 
-    {pypy,py2.7,py3.5,py3.6,py3.7,py3.8}-flask-{1.0,0.11,0.12,dev}
+    {pypy,py2.7,py3.5,py3.6,py3.7,py3.8}-flask-{1.1,1.0,0.11,0.12,dev}
 
     {pypy,py2.7,py3.5,py3.6,py3.7,py3.8}-bottle-0.12
 
@@ -70,7 +70,8 @@ deps =
     flask: flask-login
     flask-0.11: Flask>=0.11,<0.12
     flask-0.12: Flask>=0.12,<0.13
-    flask-1.0: Flask>=0.10,<0.11
+    flask-1.0: Flask>=1.0,<1.1
+    flask-1.1: Flask>=1.1,<1.2
     flask-dev: git+https://github.com/pallets/flask.git#egg=flask
 
     bottle-0.12: bottle>=0.12,<0.13