diff --git a/pyproject.toml b/pyproject.toml
index 3092b53..0e557b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,7 +76,7 @@ binder = [
     "jupyterlab",
 ]
 docs = [
-    "sphinx<7.3.0",
+    "sphinx<7.4.0",
     "sphinx-design",
     "sphinx-version-warning",
     "sphinx_issues",