diff --git a/pyproject.toml b/pyproject.toml
index 47ec208..c5e45a6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ dev-mkdocs = [
   "frequenz-repo-config[lib] == 0.13.5",
 ]
 dev-mypy = [
-  "mypy == 1.16.1",
+  "mypy == 1.17.1",
   "types-Markdown == 3.8.0.20250415",
   "types-protobuf == 6.30.2.20250516",
   # For checking the noxfile, docs/ script, and tests