diff --git a/docs/requirements-dev.txt b/docs/requirements-dev.txt
index e5d2f02..9f9c53a 100644
--- a/docs/requirements-dev.txt
+++ b/docs/requirements-dev.txt
@@ -16,6 +16,6 @@ pytest-cython==0.2.1
 pytest-xdist==3.5.0
 pytest-assume==2.4.3
 sdist==0.0.0
-sphinx==6.1.3
+sphinx==8.1.0
 tox==4.14.2
 twine==5.1.1