diff --git a/pyproject.toml b/pyproject.toml
index 47cb8b1..4c54bc3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,7 +74,7 @@ dev-pylint = [
   "frequenz-gridpool[dev-mkdocs,dev-noxfile,dev-pytest]",
 ]
 dev-pytest = [
-  "pytest == 8.4.1",
+  "pytest == 9.0.1",
   "pylint == 4.0.3",       # We need this to check for the examples
   "frequenz-repo-config[extra-lint-examples] == 0.13.6",
   "pytest-mock == 3.15.1",