diff --git a/pyproject.toml b/pyproject.toml
index eb6fd10..78030ad 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ dev = [
     "volatile==2.1.0",
 ]
 docs = [
-    "sphinx==7.4.7",
+    "sphinx==8.1.3",
     "sphinx-mdinclude==0.6.2",
 ]