diff --git a/requirements.txt b/requirements.txt
index 6a4bdf2..ec74a9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # 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
 testrepository>=0.0.18 # Apache-2.0/BSD
 python-subunit>=0.0.18 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT