diff --git a/requirements.txt b/requirements.txt
index c2c6203..27b0dd4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ asn1crypto==0.24.0
 astroid==2.0.4
 atomicwrites==1.2.1
 attrs==17.4.0
-Babel==2.6.0
+Babel==2.9.1
 backports.functools-lru-cache==1.5
 bcrypt==3.1.4
 billiard==3.5.0.4