diff --git a/requirements_dev.txt b/requirements_dev.txt
index 5c8e481..3903b93 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -3,7 +3,7 @@ wheel==0.37.1
 watchdog==2.1.7
 tox==3.24.5
 coverage==6.3.2
-Sphinx==4.3.0
+Sphinx==6.1.2
 m2r2==0.3.2
 twine==3.8.0
 pytest==7.1.1