diff --git a/README.md b/README.md
deleted file mode 100644
index 5648c9d..0000000
--- a/README.md
+++ /dev/null
@@ -1,11 +0,0 @@
-
-# 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
new file mode 100644
index 0000000..f675812
--- /dev/null
+++ b/README.txt
@@ -0,0 +1,13 @@
+
+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 0742c23..cec10d3 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.md"
+readme = "README.txt"
 authors = [{name = "Lance Edgar", email = "lance@edbob.org"}]
 license = {text = "GNU GPL v3+"}
 classifiers = [
diff --git a/tasks.py b/tasks.py
index 977854b..b7945f5 100644
--- a/tasks.py
+++ b/tasks.py
@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2024 Lance Edgar
+#  Copyright © 2010-2019 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -24,22 +24,23 @@
 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(c):
+def release(ctx):
     """
     Release a new version of `rattail`.
     """
-    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/*')
+    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__))