diff --git a/setup.py b/setup.py
index d3011c29..9c634659 100755
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@
     ]
 
     doc_requirements = [
-        "sphinx<7.0",
+        "sphinx>=6.2.1, <7.0",
         "sphinx-rtd-theme",
     ]