diff --git a/requirements-py3.txt b/requirements-py3.txt
index fc8bdce6a9..838ea13c83 100644
--- a/requirements-py3.txt
+++ b/requirements-py3.txt
@@ -2,6 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
+retrying>=1.2.3,!=1.3.0 # Apache-2.0
 alembic>=0.7.1
 argparse
 croniter>=0.3.4 # MIT License
@@ -15,6 +16,7 @@ msgpack-python>=0.4.0
 netaddr>=0.7.12
 oslo.concurrency>=0.3.0  # Apache-2.0
 oslo.config>=1.4.0  # Apache-2.0
+oslo.context>=0.1.0  # Apache-2.0
 oslo.db>=1.1.0  # Apache-2.0
 oslo.i18n>=1.0.0  # Apache-2.0
 PasteDeploy>=1.5.0
@@ -38,5 +40,6 @@ six>=1.7.0
 SQLAlchemy>=0.9.7,<=0.9.99
 sqlalchemy-migrate>=0.9.1,!=0.9.2
 stevedore>=1.1.0  # Apache-2.0
+tooz>=0.3 # Apache-2.0
 WebOb>=1.2.3
 WSME>=0.6