diff --git a/requirements.txt b/requirements.txt
index 3ef0bb2a..80beaf1a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ requests!=2.9.0,>=2.8.1 # Apache-2.0
 python-keystoneclient!=1.8.0,!=2.1.0,>=1.6.0 # Apache-2.0
 simplejson>=2.2.0 # MIT
 six>=1.9.0 # MIT
-Babel>=1.3 # BSD
+Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
 
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.utils>=3.5.0 # Apache-2.0