diff --git a/requirements.txt b/requirements.txt
index c7f94cf..fd0122a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@
 # process, which may cause wedges in the gate later.
 
 pbr>=1.6 # Apache-2.0
-Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
+Babel>=2.3.4 # BSD
 requests!=2.9.0,>=2.8.1 # Apache-2.0
 six>=1.9.0 # MIT