diff --git a/requirements.txt b/requirements.txt
index 1ba0a44..088db76 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ astroid==2.3.1
 astropy==3.2.1
 atomicwrites==1.3.0
 attrs==19.2.0
-Babel==2.7.0
+Babel==2.9.1
 backcall==0.1.0
 backports.functools-lru-cache==1.5
 backports.os==0.1.1