diff --git a/requirements-dev.txt b/requirements-dev.txt
index 4f5bbd8..4b8f836 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -17,5 +17,5 @@ pyflakes
 Jinja2==2.11.2
 MarkupSafe==1.1.1
 Pygments==2.6.1
-Sphinx==3.2.0
+Sphinx==3.2.1
 docutils==0.16