diff --git a/tasks.py b/tasks.py
index ac9fab3..577dd82 100644
--- a/tasks.py
+++ b/tasks.py
@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2022 Lance Edgar
+#  Copyright © 2010-2024 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -35,12 +35,12 @@ exec(open(os.path.join(here, 'rattail_mailchimp', '_version.py')).read())
 
 
 @task
-def release(ctx):
+def release(c):
     """
     Release a new version of 'rattail-mailchimp'.
     """
     shutil.rmtree('rattail_mailchimp.egg-info')
-    ctx.run('python -m build --sdist')
+    c.run('python -m build --sdist')
 
-    filename = 'rattail-mailchimp-{}.tar.gz'.format(__version__)
-    ctx.run('twine upload dist/{}'.format(filename))
+    filename = f'rattail_mailchimp-{__version__}.tar.gz'
+    c.run('twine upload dist/{}'.format(filename))