diff --git a/requirements.txt b/requirements.txt
index 965ef71..f7604bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ astroid==1.6.1
 astropy==2.0.3
 attrs==17.4.0
 awscli==1.15.37
-Babel==2.5.3
+Babel==2.9.1
 backports.shutil-get-terminal-size==1.0.0
 beautifulsoup4==4.6.0
 bitarray==0.8.1