diff --git a/classes/task/delete_local_empty_directories.php b/classes/task/delete_local_empty_directories.php
index 74cb69c4..96d1399a 100644
--- a/classes/task/delete_local_empty_directories.php
+++ b/classes/task/delete_local_empty_directories.php
@@ -27,11 +27,10 @@
 
 use coding_exception;
 use tool_objectfs\local\manager;
+use core\cron;
 
 defined('MOODLE_INTERNAL') || die();
 
-require_once($CFG->libdir.'/cronlib.php');
-
 class delete_local_empty_directories  extends task {
 
     /** @var string $stringname  */
@@ -51,7 +50,7 @@ public function execute() {
             return;
         }
         $filesystem = new $this->config->filesystem();
-        cron_trace_time_and_memory();
+        cron::trace_time_and_memory();
         $filesystem->delete_empty_dirs();
     }
 }
diff --git a/lib.php b/lib.php
index 59159ebe..5106bcc3 100644
--- a/lib.php
+++ b/lib.php
@@ -69,22 +69,6 @@
 define('TOOL_OBJECTFS_DELETE_EXTERNAL_TRASH', 1);
 define('TOOL_OBJECTFS_DELETE_EXTERNAL_FULL', 2);
 
-// Legacy cron function.
-function tool_objectfs_cron() {
-    mtrace('RUNNING legacy cron objectfs');
-    global $CFG;
-    if ($CFG->branch <= 26) {
-        // Unlike the task system, we do not get fine grained control over
-        // when tasks/manipulators run. Every cron we just run all the manipulators.
-        (new manipulator_builder())->execute_all();
-
-        \tool_objectfs\local\report\objectfs_report::cleanup_reports();
-        \tool_objectfs\local\report\objectfs_report::generate_status_report();
-    }
-
-    return true;
-}
-
 /**
  * Sends a plugin file to the browser.
  * @param $course
diff --git a/tests/local/tasks_test.php b/tests/local/tasks_test.php
index 6cae7841..8a71d024 100644
--- a/tests/local/tasks_test.php
+++ b/tests/local/tasks_test.php
@@ -32,13 +32,6 @@ protected function tearDown(): void {
         ob_end_clean();
     }
 
-    public function test_run_legacy_cron() {
-        $config = manager::get_objectfs_config();
-        $config->enabletasks = true;
-        manager::set_objectfs_config($config);
-        $this->assertTrue(tool_objectfs_cron());
-    }
-
     public function test_run_scheduled_tasks() {
         global $CFG;
         // If tasks not implemented.