diff --git a/pyproject.toml b/pyproject.toml
index ec7d71e4..fea4e629 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,7 +61,7 @@ dev-mypy = [
   # For checking the noxfile, docs/ script, and tests
   "frequenz-channels[dev-mkdocs,dev-noxfile,dev-pytest]",
   "mypy == 1.8.0",
-  "types-Markdown == 3.5.0.3",
+  "types-Markdown == 3.5.0.20240129",
 ]
 dev-noxfile = ["nox == 2023.4.22", "frequenz-repo-config[lib] == 0.8.0"]
 dev-pylint = [