diff --git a/requirements.txt b/requirements.txt
index 3fd4c5b..a4e0c29 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,4 @@ oslo.utils>=3.5.0 # Apache-2.0
 pbr>=1.6 # Apache-2.0
 pycadf!=2.0.0,>=1.1.0 # Apache-2.0
 six>=1.9.0 # MIT
-Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
+Babel>=2.3.4 # BSD