diff --git a/requirements.txt b/requirements.txt
index 7d1aeba..c073448 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ appscript==1.0.1
 astroid==1.4.9
 astropy==1.3.1
 awscli==1.11.77
-Babel==2.3.4
+Babel==2.9.1
 backports.shutil-get-terminal-size==1.0.0
 beautifulsoup4==4.5.3
 bitarray==0.8.1