diff --git a/requirements.txt b/requirements.txt
index 4abdbcb..dea9c6d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ alembic==0.6.2
 anaconda-client==1.1.0
 argcomplete==1.0.0
 astropy==1.0.5
-Babel==2.1.1
+Babel==2.9.1
 backports.ssl-match-hostname==3.4.0.2
 beautifulsoup4==4.4.1
 bitarray==0.8.1