diff --git a/.readthedocs.yml b/.readthedocs.yml
index 8b8e6bc..0883866 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,9 +1,9 @@
 version: 2
 
 build:
-  os: ubuntu-22.04
+  os: ubuntu-24.04
   tools:
-    python: "3.12"
+    python: "3.13"
 
 sphinx:
   configuration: docs/conf.py
diff --git a/LICENSE b/LICENSE
index d8a0a7b..a641e87 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
 The MIT License (MIT)
-Copyright (c) 2009-2023 - Simon Conseil
+Copyright (c) 2009-2025 - Simon Conseil
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to
diff --git a/pyproject.toml b/pyproject.toml
index 08e1173..7d671bf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ dependencies = [
     "click",
     "Jinja2>=2.7",
     "Markdown",
-    "Pillow>=8.0.0",
+    "Pillow>=10.0.0",
     "pilkit",
     "natsort",
 ]
diff --git a/tox.ini b/tox.ini
index d93dd62..a8c1ea7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,11 +25,11 @@ commands =
     pytest --cov sigal --cov-report term --durations=10 tests/
 
 [testenv:doc]
-whitelist_externals = make
+changedir = docs
 extras = docs
 usedevelop = true
 commands =
-    make -C docs html
+    sphinx-build -b html -d _build/doctrees  -j auto . _build/html
 
 [testenv:demo]
 usedevelop = true