diff --git c/pyproject.toml w/pyproject.toml
index 9fefd55..9670eb2 100644
--- c/pyproject.toml
+++ w/pyproject.toml
@@ -11,7 +11,7 @@ description = "IMAP synchronization tool"
 authors = [
     { name = "John Goerzen & contributors", email = "jgoerzen@complete.org" }
 ]
-license = { text = "GPL-2.0" }
+license = "GPL-2.0-or-later"
 readme = "README.md"
 keywords = ["client", "imap", "cli", "email", "mail", "synchronization", "sync", "offline"]
 requires-python = ">=3.6"
@@ -19,7 +19,6 @@ requires-python = ">=3.6"
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Environment :: Console",
-    "License :: OSI Approved :: GNU General Public License v2 (GPLv2)",
     "Operating System :: POSIX",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.6",
diff --git c/setup.py w/setup.py
index 9bf3be1..74e1370 100644
--- c/setup.py
+++ w/setup.py
@@ -81,16 +81,6 @@ setup(name="offlineimap",
       packages=['offlineimap', 'offlineimap.folder',
                 'offlineimap.repository', 'offlineimap.ui',
                 'offlineimap.utils'],
-      scripts=['bin/offlineimap'],
       setup_requires=['setuptools>=18.5', 'wheel', 'imaplib2'],
-      license=copyright + ", Licensed under the GPL version 2",
-      install_requires=['distro',
-                        'imaplib2>=3.5',
-                        'rfc6555',
-                        'urllib3~=1.25.9'],
-      extras_require={'kerberos':'gssapi[kerberos]',
-                      'keyring':'keyring[keyring]',
-                      'cygwin':'portalocker[cygwin]',
-                      'testinternet':'certifi~=2020.6.20'}
       )