diff --git a/requirements-dev.txt b/requirements-dev.txt
index 508f041..96596e8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -17,5 +17,5 @@ pyflakes
 Jinja2==2.10.3
 MarkupSafe==1.1.1
 Pygments==2.5.2
-Sphinx==2.2.2
+Sphinx==2.3.0
 docutils==0.15.2