diff --git a/conf.py b/conf.py
index fc375c97..180f75a1 100644
--- a/conf.py
+++ b/conf.py
@@ -22,8 +22,8 @@
 
 from packaging.version import Version
 import sphinx
-if Version(sphinx.__version__) < Version('2'):
-    raise RuntimeError('Need sphinx >= 2 for numpydoc to work correctly')
+if Version(sphinx.__version__) < Version('6') or Version(sphinx.__version__) >= Version('8'):
+    raise RuntimeError('Needs 8 > Sphinx Version >= 6  for numpydoc to work correctly')
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
diff --git a/requirements.txt b/requirements.txt
index bb55513f..c69e8367 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 numpydoc
-sphinx!=4.4
+sphinx==7.4.6
 tomli>=2.0.1
 grg-sphinx-theme>=0.3.2
 Jinja2