diff --git a/README.md b/README.md
index 420e9f2..8297d24 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@ Moodle supported branches
 | Version     |  Branch           | PHP  |
 | ------------------ |  ---------------- | ---- |
 | Moodle 3.9+        |  MOODLE_39_STABLE | 7.2+ |
+| Moodle 5.1         |  MOODLE_501_STABLE | 8.2 |
 
 Totara supported branches
 --------
diff --git a/version.php b/version.php
index 14df994..ec0fdfb 100644
--- a/version.php
+++ b/version.php
@@ -30,6 +30,6 @@ defined('MOODLE_INTERNAL') || die();
 $plugin->component = "auth_outage";
 $plugin->version = 2024081900;                  // The current plugin version (Date: YYYYMMDDXX).
 $plugin->release = 2024081900;                  // Human-readable release information.
-$plugin->requires = 2017111309;                 // 2017111309 = T13, but this really requires 3.9 and higher.
+$plugin->requires = 2025091900;                 // Moodle 5.1.
 $plugin->maturity = MATURITY_STABLE;            // Suitable for PRODUCTION environments!
-$plugin->supported = [39, 405];                 // A range of branch numbers of supported moodle versions.
+$plugin->supported = [501, 501];                 // A range of branch numbers of supported moodle versions.