diff --git a/requirements_dev.txt b/requirements_dev.txt
index c973431..af92b63 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -6,7 +6,7 @@ flake8==3.7.7
 tox==3.11.1
 coverage==4.5.3
 twine==3.2.0
-Sphinx==3.1.2
+Sphinx==7.3.6
 
 pytest==4.5.0
 pytest-runner==5.2