diff --git a/.gitignore b/.gitignore
index 99d47c7..4167d34 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@ pip-wheel-metadata/
 .venv/
 .vscode/
 /*.iml
+.ruff_cache/
 
 # miscellaneous
 
@@ -46,4 +47,4 @@ site/
 # data artifacts
 
 data/
-jaffle-data/
\ No newline at end of file
+jaffle-data/
diff --git a/dev-requirements.in b/dev-requirements.in
new file mode 100644
index 0000000..9ff05cf
--- /dev/null
+++ b/dev-requirements.in
@@ -0,0 +1,3 @@
+ruff
+pytest
+setuptools
diff --git a/dev-requirements.txt b/dev-requirements.txt
new file mode 100644
index 0000000..1d96861
--- /dev/null
+++ b/dev-requirements.txt
@@ -0,0 +1,11 @@
+# This file was autogenerated by uv via the following command:
+#    uv pip compile dev-requirements.in -o dev-requirements.txt
+iniconfig==2.0.0
+    # via pytest
+packaging==24.0
+    # via pytest
+pluggy==1.4.0
+    # via pytest
+pytest==8.1.1
+ruff==0.3.5
+setuptools==69.2.0
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..e796253
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,17 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "jaffle-shop-generator"
+version = "0.4.1"
+dependencies = ["numpy", "pandas", "Faker", "typer[all]"]
+
+[tool.setuptools.packages.find]
+exclude = ["*.tests", "*.tests.*", "tests.*", "tests"]
+
+[project.scripts]
+jafgen = "jafgen.cli:app"
+
+[project.optional-dependencies]
+dev = ["ruff", "pytest"]
diff --git a/requirements.in b/requirements.in
index 5cb6aeb..ad0e79e 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,7 +1,4 @@
-ruff
-pytest
 numpy
 pandas
 Faker
-setuptools
 typer[all]
diff --git a/requirements.txt b/requirements.txt
index 4ffa62a..6806946 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,22 +5,15 @@ click==8.1.7
 colorama==0.4.6
     # via typer
 faker==24.4.0
-iniconfig==2.0.0
-    # via pytest
 markdown-it-py==3.0.0
     # via rich
 mdurl==0.1.2
     # via markdown-it-py
 numpy==1.26.4
     # via pandas
-packaging==24.0
-    # via pytest
 pandas==2.2.1
-pluggy==1.4.0
-    # via pytest
 pygments==2.17.2
     # via rich
-pytest==8.1.1
 python-dateutil==2.9.0.post0
     # via
     #   faker
@@ -29,8 +22,6 @@ pytz==2024.1
     # via pandas
 rich==13.7.1
     # via typer
-ruff==0.3.4
-setuptools==69.2.0
 shellingham==1.5.4
     # via typer
 six==1.16.0
diff --git a/setup.py b/setup.py
index 14f00a3..2cdba72 100644
--- a/setup.py
+++ b/setup.py
@@ -1,20 +1,12 @@
 from setuptools import find_packages, setup
 
-
-def parse_requirements(filename):
-    """Load requirements from a pip requirements file."""
-    lineiter = (line.strip() for line in open(filename))
-    return [line for line in lineiter if line and not line.startswith("#")]
-
-
-requirements = parse_requirements("requirements.in")
 setup(
     name="jaffle-shop-generator",
-    version="0.4.0",
+    version="0.4.1",
     packages=find_packages(
         exclude=["*.tests", "*.tests.*", "tests.*", "tests"],
     ),
     package_dir={"jafgen": "jafgen"},
     entry_points={"console_scripts": ["jafgen = jafgen.cli:app"]},
-    install_requires=requirements,
+    install_requires=["numpy", "pandas", "Faker", "typer[all]"],
 )