diff --git a/requirements-dev.txt b/requirements-dev.txt
index 977b7820..437afe46 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 setuptools==56.2.0
-sphinx==4.0.1
+sphinx==4.0.2
 sphinx_rtd_theme==0.5.2
 coverage==5.5
 flake8==3.9.2