diff --git a/pyproject.toml b/pyproject.toml
index 079090c..7bf44db 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ repository = "https://github.com/cemsbv/bromodels"
 test = ["coveralls", "pytest"]
 docs = [
     "ipython==7.30.1",
-    "Sphinx==6.1.3",
+    "Sphinx==8.0.2",
     "sphinx-autodoc-typehints==1.22.0",
     "asteroid-sphinx-theme==0.0.3",
     "sphinx_rtd_theme==1.2.0",
diff --git a/requirements.txt b/requirements.txt
index 1d55cbb..cc3d5b0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -214,7 +214,7 @@ snowballstemmer==2.2.0
     # via sphinx
 soupsieve==2.5
     # via beautifulsoup4
-sphinx==6.1.3
+sphinx==8.0.2
     # via
     #   asteroid-sphinx-theme
     #   bromodels (pyproject.toml)