diff --git a/requirements/base.txt b/requirements/base.txt
index 93e4096..6b6b401 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,2 +1,2 @@
 python-dateutil>=1.5,<2.5
-requests-oauthlib>=0.4,<0.5
+requests-oauthlib>=0.5,<0.6
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 3cb7c01..9d9eb65 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -2,4 +2,4 @@
 -r test.txt
 
 cherrypy>=3.7,<3.8
-tox>=1.8,<2.1
+tox>=2.1,<2.2