diff --git a/requirements.txt b/requirements.txt
index a50e1b54e..0a17c723e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,11 +29,11 @@ python-cinderclient>=1.6.0 # Apache-2.0
 keystoneauth1>=2.1.0 # Apache-2.0
 python-neutronclient>=4.2.0 # Apache-2.0
 python-glanceclient>=2.0.0 # Apache-2.0
-requests!=2.9.0,>=2.8.1 # Apache-2.0
+requests>=2.10.0 # Apache-2.0
 six>=1.9.0 # MIT
 stevedore>=1.10.0 # Apache-2.0
 setuptools>=16.0 # PSF/ZPL
-websockify>=0.6.1 # LGPLv3
+websockify>=0.8.0 # LGPLv3
 oslo.cache>=1.5.0 # Apache-2.0
 oslo.concurrency>=3.5.0 # Apache-2.0
 oslo.config>=3.9.0 # Apache-2.0
@@ -47,12 +47,12 @@ oslo.rootwrap>=2.0.0 # Apache-2.0
 oslo.messaging>=4.5.0 # Apache-2.0
 oslo.policy>=0.5.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
-oslo.service>=1.0.0 # Apache-2.0
+oslo.service>=1.10.0 # Apache-2.0
 rfc3986>=0.2.0 # Apache-2.0
 oslo.middleware>=3.0.0 # Apache-2.0
 psutil<2.0.0,>=1.1.1 # BSD
 oslo.versionedobjects!=1.9.0,>=1.5.0 # Apache-2.0
 os-brick>=1.3.0 # Apache-2.0
 os-win>=0.2.3 # Apache-2.0
-castellan>=0.3.1 # Apache-2.0
+castellan>=0.4.0 # Apache-2.0
 microversion-parse>=0.1.2 # Apache-2.0