diff --git a/requirements.txt b/requirements.txt
index 3065ffb..14d0e2a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,4 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
 keystoneauth1>=3.1.0 # Apache-2.0
 six>=1.9.0 # MIT
-PyYAML>=3.10.0 # MIT
+PyYAML>=3.10 # MIT
diff --git a/test-requirements.txt b/test-requirements.txt
index d57bdde..30f8d49 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@
 coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
-mock>=2.0 # BSD
+mock>=2.0.0 # BSD
 openstackdocstheme>=1.16.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD