diff --git a/requirements.txt b/requirements.txt
index e2d95bfbf1d..c87acd71e6b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 
 pbr!=0.7,<1.0,>=0.6
 anyjson>=0.3.3
-Babel>=1.3
+Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
 eventlet!=0.17.0,>=0.16.1
 greenlet>=0.3.2
 iso8601>=0.1.9