diff --git a/pyproject.toml b/pyproject.toml
index dc7b2e1..a2db0cd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,7 @@ dev-mkdocs = [
 ]
 dev-mypy = [
   "mypy == 2.1.0",
-  "types-Markdown == 3.10.2.20260408",
+  "types-Markdown == 3.10.2.20260518",
   # For checking the noxfile, docs/ script, and tests
   "frequenz-microgrid-component-graph[dev-mkdocs,dev-noxfile,dev-pytest]",
 ]