diff --git a/setup.py b/setup.py
index 3103f6e281..bd94a2f174 100755
--- a/setup.py
+++ b/setup.py
@@ -85,7 +85,7 @@
         'autodocsumm>=0.2.2',
         'ipython',
         'nbsphinx',
-        'sphinx>=6.3.1',
+        'sphinx>=6.1.3',
         'sphinx_rtd_theme',
     ],
     # Development dependencies