diff --git a/requirements-dev.txt b/requirements-dev.txt
index 651d98e..65290b5 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 aiomonitor==0.4.5
 flake8==3.7.9
 flake8-quotes==2.1.1
-sphinx==2.3.1
+sphinx==2.4.2
 sphinx-rtd-theme==0.4.3
 pytest==5.3.2
 pytest-asyncio==0.10.0