diff --git a/requirements.txt b/requirements.txt
index 7607778f..5a598331 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,11 +9,11 @@ alembic>=0.8.4 # MIT
 Babel>=2.3.4 # BSD
 eventlet!=0.18.3,>=0.18.2 # MIT
 greenlet>=0.3.2 # MIT
-lxml>=2.3 # BSD
+lxml!=3.7.0,>=2.3 # BSD
 netaddr!=0.7.16,>=0.7.13 # BSD
 oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.context>=2.9.0 # Apache-2.0
-oslo.db!=4.13.1,!=4.13.2,>=4.11.0 # Apache-2.0
+oslo.db>=4.13.3 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.log>=3.11.0 # Apache-2.0
 oslo.messaging>=5.14.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 1d22c169..7a886cb0 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -18,7 +18,7 @@ openstackdocstheme>=1.5.0 # Apache-2.0
 # Do not remove 'PyMySQL' and 'psycopg2' dependencies. They are used
 # by oslo_db lib for running MySQL and PostgreSQL DB migration tests.
 # See http://docs.openstack.org/developer/oslo.db/contributing.html#how-to-run-unit-tests
-PyMySQL!=0.7.7,>=0.7.6 # MIT License
+PyMySQL>=0.7.6 # MIT License
 psycopg2>=2.5 # LGPL/ZPL
 
 python-subunit>=0.0.18 # Apache-2.0/BSD