diff --git a/requirements3.6.txt b/requirements3.6.txt
index 1be65c1..1b3d986 100644
--- a/requirements3.6.txt
+++ b/requirements3.6.txt
@@ -8,7 +8,7 @@ astropy==3.2.3
 atomicwrites==1.3.0
 attrs==19.3.0
 autopep8==1.4.4
-Babel==2.7.0
+Babel==2.9.1
 backcall==0.1.0
 backports.os==0.1.1
 backports.shutil-get-terminal-size==1.0.0