diff --git a/pyproject.toml b/pyproject.toml
index c3219175..0712d9b8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,7 +77,7 @@ dev = [
   "twine==6.1.0",
 ]
 docs = [
-  "shibuya==2025.4.25",
+  "shibuya==2025.5.30",
   "sphinx==8.2.3",
   "sphinx-copybutton==0.5.2",
   "sphinx-new-tab-link==0.8.0",