diff --git a/pyproject.toml b/pyproject.toml
index 501b53b6..e397993e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,15 +1,16 @@
 [project]
-name = "pypqc"
-version = "0.0.6.2.post1"
-description = "Python bindings for the \"PQClean\" post-quantum cryptography library."
-readme = "README.rst"
-urls = {"Homepage" = "https://github.com/JamesTheAwesomeDude/pypqc"}
+name = 'pypqc'
+version = '0.0.6.2.post1'
+description = 'Python bindings for the "PQClean" post-quantum cryptography library.'
+readme = 'README.rst'
+license.file = 'COPYING.rst'
+urls = { Homepage = 'https://github.com/JamesTheAwesomeDude/pypqc', Upstream = 'https://github.com/PQClean/PQClean' }
 dependencies = [
     'cffi >= 1.0.0;platform_python_implementation != "PyPy"',
 ]
 
 [tool.setuptools.packages.find]
-include = ["pqc"]
+include = ['pqc']
 namespaces = false
 
 [build-system]
@@ -20,5 +21,5 @@ requires = [
 ]
 
 [tool.ruff.format]
-quote-style = "single"
-indent-style = "tab"
+quote-style = 'single'
+indent-style = 'tab'