diff --git a/requirements_dev.txt b/requirements_dev.txt
index ff4ed5c..cfdabf3 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -7,7 +7,7 @@ watchdog==0.9.0
 flake8==3.7.9
 tox==3.14.1
 coverage==4.5.4
-Sphinx==2.2.1
+Sphinx==7.3.7
 twine==3.1.0
 sphinx-rtd-theme==0.4.3