diff --git a/requirements.txt b/requirements.txt
index e771d21..0e19094 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ asn1crypto==0.24.0
 atomicwrites==1.3.0
 attrs==18.1.0
 Automat==0.6.0
-Babel==2.5.3
+Babel==2.9.1
 beautifulsoup4==4.6.0
 billiard==3.6.0.0
 bitarray==0.8.3