diff --git a/pyproject.toml b/pyproject.toml
index 27da211397..b73b827af5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ dev = [
     "docutils==0.19",
     "furo",
     "pyyaml==6.0",
-    "sphinx==6.1.3",
+    "sphinx==6.2.1",
     "sphinx-autobuild==2021.3.14",
     "sphinx-copybutton==0.5.1",
     # Intentionally kept at 2.3 until this bugfix is published: https://github.com/jdillard/sphinx-sitemap/pull/62