diff --git a/pyproject.toml b/pyproject.toml
index 063cc48..398bc76 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -87,7 +87,7 @@ dev-pylint = [
 dev-pytest = [
   "pytest == 9.1.1",
   "frequenz-repo-config[extra-lint-examples] == 0.19.0",
-  "pytest-mock == 3.15.1",
+  "pytest-mock == 3.16.0",
   "pytest-asyncio == 1.4.0",
   "async-solipsism == 0.9",
 ]