diff --git a/pyproject.toml b/pyproject.toml
index 0560179..530873f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ Tidelift = "https://tidelift.com/subscription/pkg/pypi-marshmallow?utm_source=py
 
 [project.optional-dependencies]
 docs = [
-  "sphinx==8.1.3",
+  "sphinx==8.2.1",
   "sphinx-issues==5.0.0",
   "alabaster==1.0.0",
 ]