diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e71f518..1e8332a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -32,7 +32,7 @@ repos:
   - id: black
     args: [--line-length=120]
 - repo: https://github.com/pycqa/isort
-  rev: 9.0.0a3
+  rev: 9.0.0b1
   hooks:
   - id: isort
     args:
@@ -41,7 +41,7 @@ repos:
     - --profile black
     - --project anemoi
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.15.15
+  rev: v0.16.1
   hooks:
   - id: ruff
     args:
@@ -71,12 +71,12 @@ repos:
     - --license
     - tools/pre-commit-copyright-notice.txt
 - repo: https://github.com/tox-dev/pyproject-fmt
-  rev: "v2.23.0"
+  rev: "v2.26.0"
   hooks:
   - id: pyproject-fmt
     args: ["--max-supported-python", "3.12"]
 - repo: https://github.com/jshwi/docsig # Check docstrings against function sig
-  rev: v0.86.0
+  rev: v0.93.0
   hooks:
   - id: docsig
     args:
diff --git a/tests/system-level/anemoi_test/nodes.py b/tests/system-level/anemoi_test/nodes.py
index 99061d3..bc864de 100644
--- a/tests/system-level/anemoi_test/nodes.py
+++ b/tests/system-level/anemoi_test/nodes.py
@@ -9,7 +9,6 @@
 
 import os
 from pathlib import Path
-from typing import Optional
 
 import pyflow as pf
 import wellies as wl
@@ -107,7 +106,7 @@ def __init__(self, config, **kwargs):
 
 class TrainingTask(pf.Task):
     def __init__(self, folder: str, suite_config: dict, training_cmd: str = "anemoi-training train"):
-        self.required_datasets: Optional[str] = None
+        self.required_datasets: str | None = None
 
         overrides = {
             "--config-path": STATIC_DATA_DIR / "training" / folder,
@@ -218,7 +217,7 @@ def __init__(
         config_template_path: Path,
         output_path: Path,
     ):
-        self.required_trainings: Optional[str] = None
+        self.required_trainings: str | None = None
         script = pf.FileScript(SUITE_DIR / "configs/inference" / folder / "generate_config.sh")
         script.environment_variable("CHECKPOINT_DIR", str(checkpoint_path))
         script.environment_variable("CHECKPOINT_FILE", checkpoint_file)
@@ -232,7 +231,7 @@ class InferenceRetrieveTask(pf.Task):
     def __init__(
         self, folder: str, suite_config: dict, config_path: Path, mars_cmd: str, retrieve_cmd: str, output_path: Path
     ):
-        self.required_trainings: Optional[str] = None
+        self.required_trainings: str | None = None
         script = pf.FileScript(SUITE_DIR / "configs/inference/" / folder / "retrieve.sh")
         script.environment_variable("CONFIG_PATH", str(config_path))
         script.environment_variable("MARS_CMD", mars_cmd)
@@ -243,7 +242,7 @@ def __init__(
 
 class InferenceTask(pf.Task):
     def __init__(self, folder: str, suite_config: dict, config_path: Path, inference_cmd: str, output_path: Path):
-        self.required_trainings: Optional[str] = None
+        self.required_trainings: str | None = None
         script = pf.FileScript(SUITE_DIR / "configs/inference/inference.sh")
         script.environment_variable("CONFIG_PATH", str(config_path))
         script.environment_variable("INFERENCE_CMD", inference_cmd)