diff --git a/requirements.txt b/requirements.txt
index a74f5c2..aaecaaa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 cliff>=2.8.0 # Apache-2.0
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 testtools>=1.4.0 # MIT
-paramiko>=2.0 # LGPLv2.1+
+paramiko>=2.0.0 # LGPLv2.1+
 netaddr!=0.7.16,>=0.7.13 # BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
 oslo.concurrency>=3.8.0 # Apache-2.0
@@ -15,7 +15,7 @@
 oslo.utils>=3.20.0 # Apache-2.0
 six>=1.9.0 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
-PyYAML>=3.10.0 # MIT
+PyYAML>=3.10 # MIT
 python-subunit>=0.0.18 # Apache-2.0/BSD
 stevedore>=1.20.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
diff --git a/test-requirements.txt b/test-requirements.txt
index 09c7685..29f0865 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,8 +5,8 @@
 # needed for doc build
 sphinx>=1.6.2 # BSD
 openstackdocstheme>=1.16.0 # Apache-2.0
-reno!=2.3.1,>=1.8.0 # Apache-2.0
-mock>=2.0 # BSD
+reno>=2.5.0 # Apache-2.0
+mock>=2.0.0 # BSD
 coverage!=4.4,>=4.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 flake8-import-order==0.11 # LGPLv3