diff --git a/implementations/python/setup.py b/implementations/python/setup.py
index aab8ddd..809c35a 100644
--- a/implementations/python/setup.py
+++ b/implementations/python/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 
 setup(
     name="preserves",
-    version="0.17.1",
+    version="0.17.2",
     author="Tony Garnock-Jones",
     author_email="tonyg@leastfixedpoint.com",
     license="Apache Software License",
@@ -16,7 +16,8 @@ setup(
     packages=["preserves"],
     url="https://preserves.dev/",
     description="Experimental data serialization format",
-    readme="README.md",
+    long_description="README.md",
+    long_description_content_type="text/markdown",
     install_requires=[],
     python_requires=">=3.6, <4",
     setup_requires=['setuptools_scm'],