diff --git a/requirements.txt b/requirements.txt
index 2613e84..9cf8ca8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,10 +3,10 @@
 # process, which may cause wedges in the gate later.
 
 pbr>=1.6 # Apache-2.0
-Babel>=1.3 # BSD
+Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
 
 alembic>=0.8.4 # MIT
-oslo.config>=3.7.0 # Apache-2.0
+oslo.config>=3.9.0 # Apache-2.0
 oslo.db>=4.1.0 # Apache-2.0
 oslo.versionedobjects>=1.5.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0