diff --git a/requirements_dev.txt b/requirements_dev.txt
index afb028c..96c5d2a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -5,5 +5,5 @@ wheel==0.33.6
 coverage==4.5.4
 tox==3.14.0
 pytest-runner==5.1
-Sphinx==2.2.0
+Sphinx==8.0.2
 pytest==5.2.1