diff --git a/requirements.txt b/requirements.txt
index 2f5bc12..d791c87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 arrow==0.13.1
-Babel==2.6.0
+Babel==2.9.1
 cairocffi==1.0.2
 CairoSVG==2.3.0
 certifi==2018.11.29