diff --git a/requirements.txt b/requirements.txt
index c85a343..f381a26 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ astropy==3.2.1
 atomicwrites==1.3.0
 attrs==19.1.0
 autopep8==1.5.4
-Babel==2.7.0
+Babel==2.9.1
 backcall==0.2.0
 backports.functools-lru-cache==1.5
 backports.os==0.1.1