diff --git a/lower-constraints.txt b/lower-constraints.txt
index edb6a4b97..d06920933 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -6,10 +6,10 @@ bcrypt==3.1.4
 certifi==2018.1.18
 cffi==1.11.5
 chardet==3.0.4
-coverage==4.5.1
+coverage==4.0
 cryptography==2.1.4
 debtcollector==1.19.0
-doc8==0.8.0
+doc8==0.6.0
 docutils==0.14
 dulwich==0.19.0
 extras==1.0.0
@@ -30,19 +30,20 @@ mox3==0.25.0
 msgpack==0.5.6
 netaddr==0.7.19
 netifaces==0.10.6
-openstackdocstheme==1.20.0
+openstackdocstheme==1.18.1
 os-client-config==1.29.0
 oslo.config==5.2.0
 oslo.context==2.20.0
 oslo.i18n==3.20.0
-oslo.log==3.37.0
+oslo.log==3.36.0
 oslo.serialization==2.25.0
 oslo.utils==3.36.0
-oslotest==3.3.0
-paramiko==2.4.1
-pbr==3.1.1
+oslotest==3.2.0
+paramiko==2.0.0
+pbr==2.0.0
 pep8==1.5.7
 pyasn1==0.4.2
+setuptools===21.0.0
 pycparser==2.18
 pyflakes==0.8.1
 Pygments==2.2.0
@@ -54,7 +55,7 @@ python-mimeparse==1.6.0
 python-subunit==1.2.0
 pytz==2018.3
 PyYAML==3.12
-reno==2.7.0
+reno==2.5.0
 requests==2.18.4
 requestsexceptions==1.4.0
 restructuredtext-lint==1.1.3
@@ -64,9 +65,9 @@ snowballstemmer==1.2.1
 Sphinx==1.6.5
 sphinxcontrib-websupport==1.0.1
 stevedore==1.28.0
-testrepository==0.0.20
-testscenarios==0.5.0
-testtools==2.3.0
+testrepository==0.0.18
+testscenarios==0.4
+testtools==2.2.0
 traceback2==1.4.0
 unittest2==1.1.0
 urllib3==1.22
diff --git a/test-requirements.txt b/test-requirements.txt
index 49f1d85a9..6c3dbc424 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,7 +7,7 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.5 # BSD
 openstackdocstheme>=1.18.1 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD