diff --git a/pyproject.toml b/pyproject.toml
index 867fbbf..7218bf2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ gef = ["pygef>=0.8"]
 test = ["coveralls", "pytest"]
 docs = [
     "ipython==7.30.1",
-    "Sphinx==6.1.3",
+    "Sphinx==7.3.6",
     "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 cb2e9b3..eb21ee1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -217,7 +217,7 @@ snowballstemmer==2.2.0
     # via sphinx
 snuggs==1.4.7
     # via rasterio
-sphinx==6.1.3
+sphinx==7.3.6
     # via
     #   GeoProfileCore (pyproject.toml)
     #   asteroid-sphinx-theme