diff --git a/requirements.txt b/requirements.txt
index 7cc3b66..9e357d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ astroid==2.0.4
 astropy==3.0.2
 attrs==18.1.0
 Automat==0.7.0
-Babel==2.5.3
+Babel==2.9.1
 backcall==0.1.0
 backports.shutil-get-terminal-size==1.0.0
 beautifulsoup4==4.6.0