diff --git a/requirements.txt b/requirements.txt
index 90651db..39039bd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ astroid==1.6.5
 astropy==2.0.9
 atomicwrites==1.2.1
 attrs==18.2.0
-Babel==2.6.0
+Babel==2.9.1
 backports.functools-lru-cache==1.5
 certifi==2018.8.24
 chardet==3.0.4