diff --git a/setup_docs.py b/setup_docs.py
index 609fcd3fa..0120f0d68 100644
--- a/setup_docs.py
+++ b/setup_docs.py
@@ -288,7 +288,6 @@ class build_man(Command):
         'break-lock': 'lock',
         'with-lock': 'lock',
 
-        'change-passphrase': 'key',
         'key_change-passphrase': 'key',
         'key_export': 'key',
         'key_import': 'key',
diff --git a/src/borg/archiver.py b/src/borg/archiver.py
index 44ccc6df0..49827faaa 100644
--- a/src/borg/archiver.py
+++ b/src/borg/archiver.py
@@ -306,11 +306,6 @@ def do_change_passphrase(self, args, repository, manifest, key):
             logger.info('Key location: %s', key.find_key())
         return EXIT_SUCCESS
 
-    def do_change_passphrase_deprecated(self, args):
-        logger.warning('"borg change-passphrase" is deprecated and will be removed in Borg 1.2.\n'
-                       'Use "borg key change-passphrase" instead.')
-        return self.do_change_passphrase(args)
-
     @with_repository(lock=False, exclusive=False, manifest=False, cache=False)
     def do_key_export(self, args, repository):
         """Export the repository key for backup"""
@@ -2925,16 +2920,6 @@ def define_archive_filters_group(subparser, *, sort_by=True, first_last=True):
         subparser.add_argument('location', metavar='REPOSITORY', nargs='?', default='',
                                type=location_validator(archive=False))
 
-        # Borg 1.0 alias for change passphrase (without the "key" subcommand)
-        subparser = subparsers.add_parser('change-passphrase', parents=[common_parser], add_help=False,
-                                          description=self.do_change_passphrase.__doc__,
-                                          epilog=change_passphrase_epilog,
-                                          formatter_class=argparse.RawDescriptionHelpFormatter,
-                                          help='change repository passphrase')
-        subparser.set_defaults(func=self.do_change_passphrase_deprecated)
-        subparser.add_argument('location', metavar='REPOSITORY', nargs='?', default='',
-                               type=location_validator(archive=False))
-
         migrate_to_repokey_epilog = process_epilog("""
         This command migrates a repository from passphrase mode (removed in Borg 1.0)
         to repokey mode.
diff --git a/src/borg/testsuite/archiver.py b/src/borg/testsuite/archiver.py
index 5bc5c1e82..b131b7492 100644
--- a/src/borg/testsuite/archiver.py
+++ b/src/borg/testsuite/archiver.py
@@ -1555,7 +1555,7 @@ def test_unknown_feature_on_cache_sync(self):
     def test_unknown_feature_on_change_passphrase(self):
         print(self.cmd('init', '--encryption=repokey', self.repository_location))
         self.add_unknown_feature(Manifest.Operation.CHECK)
-        self.cmd_raises_unknown_feature(['change-passphrase', self.repository_location])
+        self.cmd_raises_unknown_feature(['key', 'change-passphrase', self.repository_location])
 
     def test_unknown_feature_on_read(self):
         print(self.cmd('init', '--encryption=repokey', self.repository_location))
@@ -2082,7 +2082,7 @@ def test_change_passphrase(self):
         self.cmd('init', '--encryption=repokey', self.repository_location)
         os.environ['BORG_NEW_PASSPHRASE'] = 'newpassphrase'
         # here we have both BORG_PASSPHRASE and BORG_NEW_PASSPHRASE set:
-        self.cmd('change-passphrase', self.repository_location)
+        self.cmd('key', 'change-passphrase', self.repository_location)
         os.environ['BORG_PASSPHRASE'] = 'newpassphrase'
         self.cmd('list', self.repository_location)
 
@@ -2885,7 +2885,7 @@ def test_detect_attic_repo(self):
             ['info', path + '::test'],
             ['key', 'export', path, 'exported'],
             ['key', 'import', path, 'import'],
-            ['change-passphrase', path],
+            ['key', 'change-passphrase', path],
             ['break-lock', path],
         ]
         for args in cmds: