diff --git a/setup.py b/setup.py
index dd38a46aabf65de642834c89d29bcc090d24b984..5d9845dc17a6c01e24643aaa57151e6ea0e632b6 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@ tests_require = [
 
 extras_require = {
     "docs": [
-        "Sphinx>=3,<4",
+        "Sphinx>=4.2.0",
     ],
     "tests": tests_require,
 }