diff --git a/actions/mediawiki b/actions/mediawiki
index 1ebb1cb27..fa23486b4 100755
--- a/actions/mediawiki
+++ b/actions/mediawiki
@@ -41,6 +41,7 @@ def parse_arguments():
     subparsers.add_parser('enable', help='Enable MediaWiki')
     subparsers.add_parser('disable', help='Disable MediaWiki')
     subparsers.add_parser('setup', help='Setup MediaWiki')
+    subparsers.add_parser('update', help='Run MediaWiki update script')
 
     help_pub_reg = 'Enable/Disable/Status public user registration.'
     pub_reg = subparsers.add_parser('public-registrations', help=help_pub_reg)
@@ -123,6 +124,12 @@ def subcommand_change_password(arguments):
     ])
 
 
+def subcommand_update(_):
+    """Run update.php maintenance script when version upgrades happen."""
+    update_script = os.path.join(MAINTENANCE_SCRIPTS_DIR, 'update.php')
+    subprocess.check_call(['php', update_script])
+
+
 def subcommand_enable(_):
     """Enable web configuration and reload."""
     action_utils.service_enable('mediawiki-jobrunner')
diff --git a/plinth/modules/mediawiki/__init__.py b/plinth/modules/mediawiki/__init__.py
index 3d1ebad8f..a4033df98 100644
--- a/plinth/modules/mediawiki/__init__.py
+++ b/plinth/modules/mediawiki/__init__.py
@@ -26,7 +26,7 @@ from plinth.menu import main_menu
 
 from .manifest import clients
 
-version = 1
+version = 2
 
 managed_packages = ['mediawiki', 'imagemagick', 'php-sqlite3']
 
@@ -77,6 +77,7 @@ def setup(helper, old_version=None):
     """Install and configure the module."""
     helper.install(managed_packages)
     helper.call('setup', actions.superuser_run, 'mediawiki', ['setup'])
+    helper.call('update', actions.superuser_run, 'mediawiki', ['update'])
     helper.call('enable', actions.superuser_run, 'mediawiki', ['enable'])
     global service
     if service is None: