diff --git a/README.md b/README.md
new file mode 100644
index 0000000..5648c9d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,11 @@
+
+# rattail-cognitive
+
+Rattail is a retail software framework, released under the GNU General Public
+License.
+
+This package contains hardware interfaces for
+[Cognitive](http://www.cognitive.com/) devices.
+
+Please see Rattail's [home page](https://rattailproject.org/) for more
+information.
diff --git a/README.txt b/README.txt
deleted file mode 100644
index f675812..0000000
--- a/README.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-
-rattail-cognitive
-=================
-
-Rattail is a retail software framework, released under the GNU General Public
-License.
-
-This package contains hardware interfaces for `Cognitive`_ devices.
-
-Please see Rattail's `home page`_ for more information.
-
-.. _Cognitive: http://www.cognitive.com/
-.. _home page: https://rattailproject.org/
diff --git a/pyproject.toml b/pyproject.toml
index cec10d3..0742c23 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ build-backend = "hatchling.build"
 name = "rattail_cognitive"
 version = "0.4.0"
 description = "Hardware Interfaces for Cognitive Devices"
-readme = "README.txt"
+readme = "README.md"
 authors = [{name = "Lance Edgar", email = "lance@edbob.org"}]
 license = {text = "GNU GPL v3+"}
 classifiers = [
diff --git a/tasks.py b/tasks.py
index b7945f5..977854b 100644
--- a/tasks.py
+++ b/tasks.py
@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2019 Lance Edgar
+#  Copyright © 2010-2024 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -24,23 +24,22 @@
 Tasks for rattail-cognitive
 """
 
-from __future__ import unicode_literals, absolute_import
-
 import os
 import shutil
 
 from invoke import task
 
 
-here = os.path.abspath(os.path.dirname(__file__))
-exec(open(os.path.join(here, 'rattail_cognitive', '_version.py')).read())
-
-
 @task
-def release(ctx):
+def release(c):
     """
     Release a new version of `rattail`.
     """
-    shutil.rmtree('rattail_cognitive.egg-info')
-    ctx.run('python setup.py sdist --formats=gztar')
-    ctx.run('twine upload dist/rattail_cognitive-{}.tar.gz'.format(__version__))
+    if os.path.exists('rattail_cognitive.egg-info'):
+        shutil.rmtree('rattail_cognitive.egg-info')
+    if os.path.exists('dist'):
+        shutil.rmtree('dist')
+
+    c.run('python -m build --sdist')
+
+    c.run('twine upload dist/*')