diff --git a/lower-constraints.txt b/lower-constraints.txt
index 3aaddbc5..c328932d 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -1,16 +1,16 @@
 alabaster==0.7.10
 appdirs==1.3.0
 asn1crypto==0.23.0
-cffi==1.7.0
+cffi==1.14.0
 cliff==2.8.0
 cmd2==0.8.0
 coverage==4.0
-cryptography==2.1
+cryptography==2.7
 debtcollector==1.2.0
-decorator==3.4.0
+decorator==4.1.0
 deprecation==1.0
 docutils==0.11
-dogpile.cache==0.6.2
+dogpile.cache==0.8.0
 dulwich==0.15.0
 extras==1.0.0
 fasteners==0.7.0
@@ -34,13 +34,13 @@ monotonic==0.6
 mox3==0.20.0
 msgpack-python==0.4.0
 munch==2.1.0
-netaddr==0.7.18
+netaddr==0.8.0
 netifaces==0.10.4
 openstacksdk==0.24.0
 os-client-config==1.28.0
 os-service-types==1.2.0
 os-testr==1.0.0
-osc-lib==1.8.0
+osc-lib==1.11.0
 oslo.concurrency==3.25.0
 oslo.config==5.2.0
 oslo.context==2.19.2
@@ -73,7 +73,7 @@ python-openstackclient==3.12.0
 python-subunit==1.0.0
 python-swiftclient==3.2.0
 pytz==2013.6
-PyYAML==3.12
+PyYAML==3.13
 requests==2.14.2
 requests-mock==1.2.0
 requestsexceptions==1.2.0
diff --git a/requirements.txt b/requirements.txt
index 06d8285e..05ace59d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,10 +6,10 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.2 # BSD
 keystoneauth1>=3.4.0 # Apache-2.0
 openstacksdk>=0.24.0 # Apache-2.0
-osc-lib>=1.8.0 # Apache-2.0
+osc-lib>=1.11.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
 oslo.utils>=3.33.0 # Apache-2.0
 python-heatclient>=1.10.0 # Apache-2.0
-PyYAML>=3.12 # MIT
+PyYAML>=3.13 # MIT
 requests>=2.14.2 # Apache-2.0