diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 090fce9..6dc97ec 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,7 +24,7 @@ jobs:
 
       - name: Install Python tools
         run: |
-          pip install black==22.10.0 flake8==5.0.4 isort==5.11.5
+          pip install black==26.5.1 flake8==7.3.0 isort==5.11.5
 
       - name: Run black
         run: black --check .
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b109223..ed15ad7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
 -   repo: https://github.com/psf/black
-    rev: 22.10.0
+    rev: 26.5.1
     hooks:
       -   id: black
           files: '^.*\.py'
diff --git a/contributing/requirements.txt b/contributing/requirements.txt
index 1337533..7b2f1fe 100644
--- a/contributing/requirements.txt
+++ b/contributing/requirements.txt
@@ -1,6 +1,6 @@
-black==22.10.0
-flake8==5.0.4
-isort==5.10.1
+black==26.5.1
+flake8==7.3.0
+isort==5.11.5
 pre-commit==2.20.0
 pytest==7.2.0
 pytest-dotenv==0.5.2
diff --git a/fastlabel/utils/mask_image_util.py b/fastlabel/utils/mask_image_util.py
index b48f6e6..7001ede 100644
--- a/fastlabel/utils/mask_image_util.py
+++ b/fastlabel/utils/mask_image_util.py
@@ -67,7 +67,10 @@ def __detect_segmentation_list(
         segmentation_list.append(segmentation)
 
         for separate_place_hierarchy_index in separate_place_hierarchy_indexes:
-            (segmentation, _,) = __detect_segmentation(
+            (
+                segmentation,
+                _,
+            ) = __detect_segmentation(
                 separate_place_hierarchy_index, hierarchy, contours
             )
             segmentation_list.append(segmentation)
diff --git a/tests/test_lerobot_v3_parquet.py b/tests/test_lerobot_v3_parquet.py
index 417808a..d8e9a7d 100644
--- a/tests/test_lerobot_v3_parquet.py
+++ b/tests/test_lerobot_v3_parquet.py
@@ -4,6 +4,7 @@
 check_dependencies so that pandas/pyarrow major-version bumps surface
 breakage in CI.
 """
+
 import pytest
 
 pd = pytest.importorskip("pandas")
diff --git a/tests/test_pillow_exports.py b/tests/test_pillow_exports.py
index b0f35bc..6352472 100644
--- a/tests/test_pillow_exports.py
+++ b/tests/test_pillow_exports.py
@@ -4,6 +4,7 @@
 save, ImageDraw, and ImageColor calls inside fastlabel/__init__.py so that
 Pillow major-version bumps surface API breakage in CI.
 """
+
 import os
 
 import numpy as np
diff --git a/tests/test_workspace_user.py b/tests/test_workspace_user.py
index 9d3bc8a..e7729ee 100644
--- a/tests/test_workspace_user.py
+++ b/tests/test_workspace_user.py
@@ -4,6 +4,7 @@
 endpoint, query params and payload. The HTTP layer (client.api.*_request) is
 stubbed so no real request is made.
 """
+
 import pytest
 
 import fastlabel