diff --git a/requirements.txt b/requirements.txt
index ecf1ea6aa..41ae6ec0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ kombu!=4.0.2,>=4.0.0 # BSD
 psutil>=3.2.2 # BSD
 six>=1.9.0 # MIT
 netaddr!=0.7.16,>=0.7.13 # BSD
-PyYAML>=3.10.0 # MIT
+PyYAML>=3.10 # MIT
 jsonpatch>=1.1 # BSD
 keystoneauth1>=3.1.0 # Apache-2.0
 keystonemiddleware>=4.12.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 74969355e..e16e88078 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
 coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
-mock>=2.0 # BSD
+mock>=2.0.0 # BSD
 nose # LGPL
 oslotest>=1.10.0 # Apache-2.0
 sqlalchemy-migrate>=0.11.0 # Apache-2.0