diff --git a/src/master/requirements.txt b/src/master/requirements.txt
index 97d82eb..623b8fc 100644
--- a/src/master/requirements.txt
+++ b/src/master/requirements.txt
@@ -1,4 +1,4 @@
-Babel==2.4.0
+Babel==2.9.1
 bcrypt==3.1.7
 certifi==2019.11.28
 cffi==1.13.2