diff --git a/requirements.txt b/requirements.txt
index b7c4a0ad0..7a4f9fede 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,19 +2,19 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-PyYAML>=3.10 # MIT
+PyYAML>=3.12 # MIT
 appdirs>=1.3.0 # MIT License
 requestsexceptions>=1.2.0 # Apache-2.0
 jsonpatch!=1.20,>=1.16 # BSD
 six>=1.10.0 # MIT
-os-service-types>=1.1.0 # Apache-2.0
+os-service-types>=1.2.0 # Apache-2.0
 keystoneauth1>=3.4.0 # Apache-2.0
 deprecation>=1.0 # Apache-2.0
 
 munch>=2.1.0 # MIT
 decorator>=3.4.0 # BSD
 jmespath>=0.9.0 # MIT
-ipaddress>=1.0.16;python_version<'3.3' # PSF
+ipaddress>=1.0.17;python_version<'3.3' # PSF
 futures>=3.0.0;python_version=='2.7' or python_version=='2.6' # BSD
 iso8601>=0.1.11 # MIT
 netifaces>=0.10.4 # MIT