diff --git a/requirements_dev.txt b/requirements_dev.txt
index 6d1e638..77a68a6 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ wheel==0.37.0
 flake8==3.9.2
 tox==3.24.4
 coverage==6.0
-Sphinx==4.2.0
+Sphinx==6.0.0
 twine==3.4.2
 
 pytest==6.2.5