diff --git a/setup.py b/setup.py
index dd25ade..6361530 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
             "black",
             "pytest",
             "coverage",
-            "sphinx<=6.2.1",
+            "sphinx<=7.2.6",
             "sphinx_rtd_theme",
             "recommonmark",
             "nbsphinx",