diff --git a/MD/MembraneLook/requirements.txt b/MD/MembraneLook/requirements.txt
index 43e2603..0b39937 100644
--- a/MD/MembraneLook/requirements.txt
+++ b/MD/MembraneLook/requirements.txt
@@ -11,7 +11,7 @@ astropy==3.1.1
 atomicwrites==1.3.0
 attrs==18.2.0
 autobahn==19.1.1
-Babel==2.6.0
+Babel==2.9.1
 backcall==0.1.0
 backports.os==0.1.1
 backports.shutil-get-terminal-size==1.0.0