diff --git a/requirements.txt b/requirements.txt
index 3787a161..9307b073 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,11 +7,11 @@ botocore>=1.0.0 # Apache-2.0
 eventlet!=0.18.3,>=0.18.2 # MIT
 greenlet>=0.3.2 # MIT
 httplib2>=0.7.5 # MIT
-lxml>=2.3 # BSD
+lxml!=3.7.0,>=2.3 # BSD
 oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.concurrency>=3.8.0 # 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.log>=3.11.0 # Apache-2.0
 oslo.messaging>=5.14.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0