diff --git a/docs/changelog.rst b/docs/changelog.rst
index 046f5b4d..a6d74914 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -26,6 +26,7 @@ Other improvements in this release:
 - ``datasette publish heroku`` now deploys using Python 3.8.6.
 - New ``datasette publish heroku --tar=`` option. (`#969 <https://github.com/simonw/datasette/issues/969>`__)
 - ``OPTIONS`` requests against HTML pages no longer return a 500 error. (`#1001 <https://github.com/simonw/datasette/issues/1001>`__)
+- Datasette now supports Python 3.9.
 
 .. _v0_49_1:
 
diff --git a/setup.py b/setup.py
index 8443fb41..22d164b0 100644
--- a/setup.py
+++ b/setup.py
@@ -84,6 +84,7 @@ setup(
         "Intended Audience :: End Users/Desktop",
         "Topic :: Database",
         "License :: OSI Approved :: Apache Software License",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.6",