diff --git a/pyproject.toml b/pyproject.toml
index 16c2a42..5961ee3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -83,7 +83,7 @@ dev-pylint = [
   "pandas >= 2, < 3",  # Only required for example
 ]
 dev-pytest = [
-  "pytest == 8.4.2",
+  "pytest == 9.0.1",
   "frequenz-repo-config[extra-lint-examples] == 0.13.7",
   "pytest-mock == 3.15.1",
   "pytest-asyncio == 1.3.0",