diff --git a/lower-constraints.txt b/lower-constraints.txt
index f6de0c1..8505d93 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -13,7 +13,7 @@ botocore==1.12.87
 cachetools==3.1.0
 castellan==1.1.0
 certifi==2018.11.29
-cffi==1.11.5
+cffi==1.14.0
 chardet==3.0.4
 Click==7.0
 cliff==2.14.0
@@ -27,19 +27,17 @@ doc8==0.6.0
 docutils==0.14
 dogpile.cache==0.6.8
 dulwich==0.19.10
-eventlet==0.18.2
+eventlet==0.26.0
 extras==1.0.0
 fasteners==0.14.1
 fixtures==3.0.0
-flake8==2.6.2
 Flask==1.0.2
 future==0.16.0
 futurist==1.8.0
 gitdb2==2.0.5
 GitPython==2.1.11
 greenlet==0.4.15
-grpcio==1.15.0
-hacking==1.1.0
+grpcio==1.24.3
 imagesize==1.1.0
 iso8601==0.1.12
 itsdangerous==1.1.0
@@ -50,12 +48,11 @@ jsonpointer==2.0
 jsonschema==2.6.0
 keystoneauth1==3.11.2
 keystonemiddleware==5.3.0
-kombu==4.2.2.post1
+kombu==5.0.2
 linecache2==1.0.0
 logilab-common==1.4.2
 Mako==1.0.7
 MarkupSafe==1.1.0
-mccabe==0.5.3
 microversion-parse==0.2.1
 monotonic==1.5
 mox3==0.26.0
@@ -73,7 +70,7 @@ oslo.cache==1.32.0
 oslo.concurrency==3.29.0
 oslo.config==6.8.0
 oslo.context==2.22.0
-oslo.db==4.43.0
+oslo.db==6.0.0
 oslo.i18n==3.15.3
 oslo.log==3.36.0
 oslo.messaging==9.4.0
@@ -86,7 +83,7 @@ oslo.upgradecheck==0.1.1
 oslo.utils==3.33.0
 oslotest==3.2.0
 packaging==19.0
-paramiko==2.4.2
+paramiko==2.7.1
 Paste==3.0.6
 PasteDeploy==2.0.1
 pbr==2.0.0
@@ -95,7 +92,6 @@ pyasn1==0.4.5
 pycadf==2.9.0
 pycodestyle==2.0.0
 pycparser==2.19
-pyflakes==1.2.3
 Pygments==2.3.1
 pyinotify==0.9.6
 pylint==1.4.5
@@ -115,7 +111,7 @@ python-mimeparse==1.6.0
 python-neutronclient==6.11.0
 python-novaclient==11.1.0
 python-pcre==0.7
-python-subunit==1.3.0
+python-subunit==1.4.0
 python-swiftclient==3.6.0
 pytz==2018.9
 PyYAML==3.13
@@ -131,18 +127,18 @@ six==1.10.0
 smmap2==2.0.5
 snowballstemmer==1.2.1
 SQLAlchemy==1.2.17
-sqlalchemy-migrate==0.12.0
+sqlalchemy-migrate==0.13.0
 sqlparse==0.2.4
 statsd==3.3.0
 stestr==1.0.0
 stevedore==1.30.0
 Tempita==0.5.2
-tenacity==5.0.3
+tenacity==6.1.0
 testrepository==0.0.20
 testresources==2.0.1
 testscenarios==0.4
-testtools==2.2.0
-tooz==1.64.0
+testtools==2.4.0
+tooz==1.65.0
 traceback2==1.4.0
 unittest2==1.1.0
 urllib3==1.24.1
diff --git a/requirements.txt b/requirements.txt
index ff6e585..daae8a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 
 Babel!=2.4.0,>=2.3.4 # BSD
-eventlet!=0.18.3,!=0.20.1,>=0.18.2 # MIT
+eventlet>=0.26.0 # MIT
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0
 oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index f3621b2..8cab1d3 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -13,4 +13,4 @@ oslotest>=3.2.0 # Apache-2.0
 stestr>=1.0.0 # Apache-2.0
 pylint==1.4.5 # GPLv2
 testscenarios>=0.4 # Apache-2.0/BSD
-testtools>=2.2.0 # MIT
+testtools>=2.4.0 # MIT