diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..40742b4
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,12 @@
+[project]
+name = "weather"
+version = "1.0.0"
+description = "A little weather app"
+dependencies = [
+    "flask",
+    "requests",
+]
+
+[build-system]
+requires = ["flit_core<4"]
+build-backend = "flit_core.buildapi"