diff --git a/requirements.txt b/requirements.txt
index 0f5fb91c91..7857ad7c5f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 pbr<2.0,>=1.4
 SQLAlchemy<1.1.0,>=0.9.7
-alembic>=0.7.2
+alembic>=0.8.0
 automaton>=0.5.0 # Apache-2.0
 eventlet>=0.17.4
 lxml>=2.3
@@ -19,11 +19,11 @@ python-swiftclient>=2.2.0
 pytz>=2013.6
 stevedore>=1.5.0 # Apache-2.0
 pysendfile>=2.0.0
-websockify>=0.6.0
+websockify>=0.6.1
 oslo.concurrency>=2.3.0 # Apache-2.0
 oslo.config>=2.1.0 # Apache-2.0
 oslo.context>=0.2.0 # Apache-2.0
-oslo.db>=2.0 # Apache-2.0
+oslo.db>=2.4 # Apache-2.0
 oslo.rootwrap>=2.0.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.log>=1.8.0 # Apache-2.0
@@ -31,7 +31,7 @@ oslo.policy>=0.5.0 # Apache-2.0
 oslo.serialization>=1.4.0 # Apache-2.0
 oslo.service>=0.6.0 # Apache-2.0
 oslo.utils>=2.0.0 # Apache-2.0
-pecan>=0.8.0
+pecan>=1.0.0
 requests>=2.5.2
 six>=1.9.0
 jsonpatch>=1.1
@@ -42,4 +42,4 @@ oslo.messaging!=1.17.0,!=1.17.1,>=1.16.0 # Apache-2.0
 retrying!=1.3.0,>=1.2.3 # Apache-2.0
 posix-ipc
 oslo.versionedobjects>=0.6.0
-jsonschema>=2.0.0,<3.0.0,!=2.5.0
+jsonschema!=2.5.0,<3.0.0,>=2.0.0