diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index cfc9a44..5925bd8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,21 +16,15 @@ jobs:
 
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.11"
-
-      - name: download uv
-        run: curl -LsSf https://astral.sh/uv/install.sh | sh
-
-      - run: uv pip install --system -r requirements-dev.txt
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
 
       - name: set git config
         run: |
           git config user.name "$GITHUB_ACTOR"
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
 
-      - run: python mirror.py
+      - run: uv run --no-project mirror.py
 
       - name: check for unpushed commits
         id: check_unpushed
diff --git a/README.md b/README.md
index d82bddf..1255b38 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
 # ruff-pre-commit
 
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
-[![image](https://img.shields.io/pypi/v/ruff/0.8.1.svg)](https://pypi.python.org/pypi/ruff)
-[![image](https://img.shields.io/pypi/l/ruff/0.8.1.svg)](https://pypi.python.org/pypi/ruff)
-[![image](https://img.shields.io/pypi/pyversions/ruff/0.8.1.svg)](https://pypi.python.org/pypi/ruff)
+[![image](https://img.shields.io/pypi/v/ruff/0.9.4.svg)](https://pypi.python.org/pypi/ruff)
+[![image](https://img.shields.io/pypi/l/ruff/0.9.4.svg)](https://pypi.python.org/pypi/ruff)
+[![image](https://img.shields.io/pypi/pyversions/ruff/0.9.4.svg)](https://pypi.python.org/pypi/ruff)
 [![Actions status](https://github.com/astral-sh/ruff-pre-commit/workflows/main/badge.svg)](https://github.com/astral-sh/ruff-pre-commit/actions)
 
 A [pre-commit](https://pre-commit.com/) hook for [Ruff](https://github.com/astral-sh/ruff).
@@ -20,7 +20,7 @@ To run Ruff's [linter](https://docs.astral.sh/ruff/linter) and [formatter](https
 repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.8.1
+  rev: v0.9.4
   hooks:
     # Run the linter.
     - id: ruff
@@ -34,7 +34,7 @@ To enable lint fixes, add the `--fix` argument to the lint hook:
 repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.8.1
+  rev: v0.9.4
   hooks:
     # Run the linter.
     - id: ruff
@@ -49,7 +49,7 @@ To avoid running on Jupyter Notebooks, remove `jupyter` from the list of allowed
 repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.8.1
+  rev: v0.9.4
   hooks:
     # Run the linter.
     - id: ruff
diff --git a/mirror.py b/mirror.py
index 7a8bbe8..a1df4cd 100644
--- a/mirror.py
+++ b/mirror.py
@@ -1,3 +1,12 @@
+# /// script
+# requires-python = ">=3.12"
+# dependencies = [
+#   "packaging==23.1",
+#   "urllib3==2.0.5",
+# ]
+# ///
+"""Update ruff-pre-commit to the latest version of ruff."""
+
 import re
 import subprocess
 import tomllib
diff --git a/pyproject.toml b/pyproject.toml
index 0c73fd9..9fb87e2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,11 +2,5 @@
 name = "ruff-pre-commit"
 version = "0.0.0"
 dependencies = [
-    "ruff==0.8.1",
-]
-
-[project.optional-dependencies]
-dev = [
-    "packaging~=23.1",
-    "urllib3>=2.0.5,<3.0.0",
+    "ruff==0.9.4",
 ]
diff --git a/requirements-dev.txt b/requirements-dev.txt
deleted file mode 100644
index c98d526..0000000
--- a/requirements-dev.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-# This file was autogenerated by uv via the following command:
-#    uv pip compile --extra=dev --generate-hashes -o requirements-dev.txt --no-emit-package=ruff pyproject.toml
-packaging==23.1 \
-    --hash=sha256:994793af429502c4ea2ebf6bf664629d07c1a9fe974af92966e4b8d2df7edc61 \
-    --hash=sha256:a392980d2b6cffa644431898be54b0045151319d1e7ec34f0cfed48767dd334f
-urllib3==2.0.5 \
-    --hash=sha256:13abf37382ea2ce6fb744d4dad67838eec857c9f4f57009891805e0b5e123594 \
-    --hash=sha256:ef16afa8ba34a1f989db38e1dbbe0c302e4289a47856990d0682e374563ce35e
-
-# The following packages were excluded from the output:
-# ruff