diff --git a/.github/workflows/build_files_as_test_python.yml b/.github/workflows/build_files_as_test_python.yml
index 52eac85..de479e9 100644
--- a/.github/workflows/build_files_as_test_python.yml
+++ b/.github/workflows/build_files_as_test_python.yml
@@ -19,7 +19,7 @@ jobs:
                   ./bin/python -m pip install --upgrade pip wheel
             - name: Install dependencies
               run: |
-                  ./bin/pip install -r requirements.txt
+                  ./bin/pip install -e .
             - name: Build
               run: |
                   ./bin/lektor build -f webpack
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..292d9b5
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,23 @@
+[project]
+name = "do3ccblog"
+version = "0.1.0"
+description = "Patrick's personal blog built with Lektor - texts and presentations about Python, web development, and tech"
+requires-python = ">=3.11"
+dependencies = [
+    "lektor>=3.3.11",
+    "lektor-markdown-highlighter>=0.3.2",
+    "lektor-atom>=0.4",
+    "lektor-webpack-support>=0.6",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pip-tools>=7.4.1",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/blog"]