diff --git a/.github/workflows/test-with-coverage.yml b/.github/workflows/test-with-coverage.yml
index cd1e7bf..128818c 100644
--- a/.github/workflows/test-with-coverage.yml
+++ b/.github/workflows/test-with-coverage.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
     - uses: actions/checkout@v4
@@ -28,7 +28,7 @@ jobs:
       run: |
         pytest --cov=distancerasters
     - name: Coveralls 👖
-      if: matrix.python-version == '3.12'
+      if: matrix.python-version == '3.13'
       env:
         COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
         GITHUB_TOKEN: $COVERALLS_REPO_TOKEN
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ea8def7..073ef4f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
     - uses: actions/checkout@v4
diff --git a/pyproject.toml b/pyproject.toml
index 374b58c..0bb74f9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,34 @@
 [build-system]
-requires = [
-    "setuptools>=42",
-    "wheel"
-]
+requires = ["setuptools>=42", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[project]
+authors = [{ name = "Seth Goodman", email = "sgoodman@aiddata.wm.edu" }]
+classifiers = ["Programming Language :: Python :: 3"]
+keywords = ["raster", "distance", "spatial"]
+license = { text = "BSD 3-Clause License" }
+name = "distancerasters"
+version = "0.3.3"
+description = "Generate distance raster using arbitrary sets of spatial features"
+readme = "README.md"
+requires-python = ">= 3.9"
+dependencies = [
+    "numpy",
+    "rasterio",
+    "fiona",
+    "affine",
+    "scipy>=1.6.0",
+    "rasterstats",
+    "tqdm",
+]
+
+[project.urls]
+source = "https://github.com/sgoodm/python-distance-rasters"
+issues = "https://github.com/sgoodm/python-distance-rasters/issues"
+
+[dependency-groups]
+dev = [
+    "coverage>=7.6.4",
+    "geopandas>=1.0.1",
+    "pytest>=8.3.3",
+]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 817c7d1..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,32 +0,0 @@
-[metadata]
-name = distancerasters
-version = 0.3.3
-description = Generate distance raster using arbitrary sets of spatial features
-long_description = file:README.md
-long_description_content_type = text/markdown
-author = Seth Goodman
-author_email = sgoodman@aiddata.wm.edu
-url = https://github.com/sgoodm/python-distance-rasters
-project_urls =
-    Bug Tracker = https://github.com/sgoodm/python-distance-rasters/issues
-license = BSD 3-Clause License
-keywords = raster, distance, spatial
-classifiers =
-    Programming Language :: Python :: 3
-
-[options]
-package_dir =
-    = src
-packages = find:
-# python_requires = >=3.x
-install_requires =
-    numpy
-    rasterio
-    fiona
-    affine
-    scipy>=1.6.0
-    rasterstats
-    tqdm
-
-[options.packages.find]
-where = src