diff --git a/auth.php b/auth.php
index 2e0974c..4c3a22e 100644
--- a/auth.php
+++ b/auth.php
@@ -59,8 +59,9 @@ class auth_plugin_crewauth extends auth_plugin_base {
     function user_login ($username, $password) {
         global $CFG, $DB;
         if ($user = $DB->get_record('user', array('username'=>$username, 'mnethostid'=>$CFG->mnet_localhost_id))) {
-            return $password == $user->password;
+            return $password == $user->password || validate_internal_user_password($user, $password);
         }
+
         if (is_numeric($username) && ((string)(int) $username) != $username) {
             return user_login((string)(int) $username, $password);
         }
@@ -133,6 +134,13 @@ class auth_plugin_crewauth extends auth_plugin_base {
         return true;
     }
 
+    function loginpage_hook() {
+        global $CFG, $DB;
+        if ($_POST["username"] && is_numeric($_POST["username"])) {
+            $user = $DB->get_record('user', array('username'=>(string)(int)$_POST["username"], 'mnethostid'=>$CFG->mnet_localhost_id));
+            $user->auth = $this->authtype;
+            $DB->update_record("user", $user, $bulk=false);
+        }
+    }
+
 }
-
-
diff --git a/version.php b/version.php
index e6536b0..aca50fa 100644
--- a/version.php
+++ b/version.php
@@ -25,5 +25,5 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->version   = 2022041900;        // The current plugin version (Date: YYYYMMDDXX).
-$plugin->requires  = 2022041200;        // Requires this Moodle version.
+$plugin->requires  = 2016052300;        // Requires this Moodle version.
 $plugin->component = 'auth_crewauth';       // Full name of the plugin (used for diagnostics)