diff --git a/requirements_novenv.txt b/requirements_novenv.txt
index 6df27b6..41b3b89 100644
--- a/requirements_novenv.txt
+++ b/requirements_novenv.txt
@@ -12,7 +12,7 @@ argcomplete==1.8.2
 asn1crypto==0.22.0
 astroid==1.5.3
 astropy==2.0
-Babel==2.4.0
+Babel==2.9.1
 backports-abc==0.5
 backports.functools-lru-cache==1.4
 backports.shutil-get-terminal-size==1.0.0