diff --git a/requirements.txt b/requirements.txt
index a249806..be893b2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ appscript==1.0.1
 asn1crypto==0.22.0
 astroid==1.5.3
 astropy==2.0.2
-Babel==2.5.0
+Babel==2.9.1
 backports.shutil-get-terminal-size==1.0.0
 beautifulsoup4==4.6.0
 bitarray==0.8.1