diff --git a/requirements_dev.txt b/requirements_dev.txt
index 951cb01..6a8642f 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -6,7 +6,7 @@ flake8==5.0.1
 tox==3.26.0
 coverage==6.5.0
 cryptography==35.0.0
-Sphinx==4.5.0
+Sphinx==5.3.0
 PyYAML==6.0
 pytest==7.1.2
 pytest-runner==5.3.2