diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7686f81..5f5c4ad 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,9 +10,9 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.10', '3.11', '3.12', '3.13']
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 16918c2..e698824 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,30 +18,30 @@ repos:
     rev: 7.3.0
     hooks:
     -   id: flake8
-        additional_dependencies: [flake8-typing-imports==1.14.0]
-        args: [--min-python-version=3.9]
+        additional_dependencies: [flake8-typing-imports==1.17.0]
+        args: [--min-python-version=3.10]
 -   repo: https://github.com/hhatto/autopep8
     rev: v2.3.2
     hooks:
     -   id: autopep8
 -   repo: https://github.com/asottile/reorder-python-imports
-    rev: v3.15.0
+    rev: v3.16.0
     hooks:
     -   id: reorder-python-imports
 -   repo: https://github.com/asottile/add-trailing-comma
-    rev: v3.2.0
+    rev: v4.0.0
     hooks:
     -   id: add-trailing-comma
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v3.20.0
+    rev: v3.21.2
     hooks:
     -   id: pyupgrade
-        args: [--py39-plus]
+        args: [--py310-plus]
 -   repo: https://github.com/asottile/setup-cfg-fmt
-    rev: v2.8.0
+    rev: v3.2.0
     hooks:
     -   id: setup-cfg-fmt
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.18.2
+    rev: v1.19.1
     hooks:
     -   id: mypy
diff --git a/setup.cfg b/setup.cfg
index e22d9f0..90addbb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -18,7 +18,7 @@ classifiers =
 py_modules = flake8_timeout
 install_requires =
     flake8
-python_requires = >=3.9
+python_requires = >=3.10
 
 [options.packages.find]
 exclude =
diff --git a/tox.ini b/tox.ini
index 7ddf0d9..27d98ac 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py39, py310, py311, py312, py313, pre-commit
+envlist = py310, py311, py312, py313, pre-commit
 skip_missing_interpreters = true
 
 [testenv]