diff --git a/docs/sphinx-requirements.txt b/docs/sphinx-requirements.txt
index b3b5e3d26..4af357fc0 100644
--- a/docs/sphinx-requirements.txt
+++ b/docs/sphinx-requirements.txt
@@ -1,6 +1,6 @@
 git+https://github.com/gniezen/n3pygments.git
 myst-parser
-sphinx<5
+sphinx<6
 sphinxcontrib-apidoc
 sphinxcontrib-kroki
 sphinx-autodoc-typehints
diff --git a/setup.py b/setup.py
index efba9f179..f57e9510a 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@
     "tests": kwargs["tests_require"],
     "docs": [
         "myst-parser",
-        "sphinx < 5",
+        "sphinx < 6",
         "sphinxcontrib-apidoc",
         "sphinxcontrib-kroki",
         "sphinx-autodoc-typehints",