diff --git a/mod/assign/upgradelib.php b/mod/assign/upgradelib.php
index 0002412334d6a..f9872c6c70dcc 100644
--- a/mod/assign/upgradelib.php
+++ b/mod/assign/upgradelib.php
@@ -95,6 +95,10 @@ public function upgrade_assignment($oldassignmentid, & $log) {
         if ($oldassignment->preventlate) {
             $data->cutoffdate = $data->duedate;
         }
+        $data->teamsubmission = 0;
+        $data->requireallteammemberssubmit = 0;
+        $data->teamsubmissiongroupingid = 0;
+        $data->blindmarking = 0;
 
         $newassignment = new assign(null, null, null);