diff --git a/requirements.txt b/requirements.txt
index d215887c5..5d8d49218 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-PyYAML>=3.1.0 # MIT
+PyYAML>=3.10.0 # MIT
 Jinja2>=2.8 # BSD License (3 clause)
 pbr>=1.6 # Apache-2.0
 Babel>=2.3.4 # BSD
diff --git a/test-requirements.txt b/test-requirements.txt
index 7a55eca4d..812d74734 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,8 +7,8 @@ hacking<0.11,>=0.10.0
 coverage>=3.6 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD
 reno>=1.8.0 # Apache2
-sphinx!=1.3b1,<1.3,>=1.2.1 # BSD
-oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
+sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
+oslosphinx>=4.7.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD