diff --git a/requirements-dev.txt b/requirements-dev.txt
index b137f07..11d4226 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@
 #    pip-compile --output-file requirements-dev.txt requirements-dev.in
 #
 alabaster==0.7.10 # via sphinx
-babel==2.3.4 # via sphinx
+babel==2.4.0 # via sphinx
 coverage==4.3.4
 django-appconf==1.0.2
 django-redis==4.7.0