diff --git a/requirements.txt b/requirements.txt
index b62a35183..958f773e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 pbr!=0.7,<1.0,>=0.6
 six>=1.9.0
 
-Babel>=1.3
+Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
 cliff<1.11.0,>=1.10.0 # Apache-2.0
 cliff-tablib<2.0,>=1.0
 oslo.config<1.10.0,>=1.9.3 # Apache-2.0