diff --git a/test-requirements.txt b/test-requirements.txt
index 2d22f6f..82edaa2 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@
 #
 # Hacking should appear first in case something else depends on pep8
 hacking<0.11,>=0.10.2 # Apache-2.0
-coverage>=4.0 # Apache-2.0
+coverage!=4.4,>=4.0 # Apache-2.0
 django-nose>=1.4.4 # BSD
 docutils>=0.11 # OSI-Approved Open Source, Public Domain
 mock>=2.0 # BSD
@@ -21,7 +21,7 @@ nosexcover # BSD
 openstack.nose-plugin>=0.7 # Apache-2.0
 oslosphinx>=4.7.0 # Apache-2.0
 selenium>=2.50.1 # Apache-2.0
-sphinx>=1.5.1 # BSD
+sphinx!=1.6.1,>=1.5.1 # BSD
 testtools>=1.4.0 # MIT
 # This also needs xvfb library installed on your OS
 xvfbwrapper>=0.1.3 #license: MIT