diff --git a/requirements.txt b/requirements.txt
index c005c803..665a2dac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-Babel>=1.3 # BSD
+Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
 dogpile.cache>=0.5.7 # BSD
 six>=1.9.0 # MIT
 oslo.config>=3.7.0 # Apache-2.0