diff --git a/engine/classes/Elgg/Cache/CompositeCache.php b/engine/classes/Elgg/Cache/CompositeCache.php
index d08cb593001..8fa3beecb30 100644
--- a/engine/classes/Elgg/Cache/CompositeCache.php
+++ b/engine/classes/Elgg/Cache/CompositeCache.php
@@ -105,7 +105,7 @@ public function load($key) {
 			return $item->get();
 		} catch (PhpfastcacheRootException $e) {
 			// something wrong with the cache
-			elgg_log($e->getMessage(), 'ERROR');
+			elgg_log($e->getMessage(), \Psr\Log\LogLevel::ERROR);
 			return null;
 		}
 	}
diff --git a/engine/classes/Elgg/Cache/Config/Redis.php b/engine/classes/Elgg/Cache/Config/Redis.php
index 467b6a5e014..525af81fcb7 100644
--- a/engine/classes/Elgg/Cache/Config/Redis.php
+++ b/engine/classes/Elgg/Cache/Config/Redis.php
@@ -36,7 +36,7 @@ public static function fromElggConfig(string $namespace, \Elgg\Config $config):
 		}
 		
 		if (count($config->redis_servers) > 1) {
-			elgg_log('Multiple Redis servers are not supported. Only the first server will be used. Please update the configuration in elgg-config/settings.php', 'warning');
+			elgg_log('Multiple Redis servers are not supported. Only the first server will be used. Please update the configuration in elgg-config/settings.php', \Psr\Log\LogLevel::WARNING);
 		}
 		
 		$server = $config->redis_servers[0];
diff --git a/engine/classes/Elgg/Traits/Seeding.php b/engine/classes/Elgg/Traits/Seeding.php
index cd6919dd9df..7935e6d79f7 100644
--- a/engine/classes/Elgg/Traits/Seeding.php
+++ b/engine/classes/Elgg/Traits/Seeding.php
@@ -884,7 +884,6 @@ public function createLikes(\ElggEntity $entity, $limit = null): int {
 	 *
 	 * @param string $msg   Message to log
 	 * @param string $level Message level
-	 *                      Note that 'ERROR' will terminate further code execution
 	 *
 	 * @return void
 	 */
diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php
index 2c197a0798e..f3c7adfa901 100644
--- a/engine/lib/elgglib.php
+++ b/engine/lib/elgglib.php
@@ -78,7 +78,9 @@ function elgg_register_error_message(string|array $options): void {
  * @note Use the developers plugin to display logs
  *
  * @param string $message User message
- * @param string $level   NOTICE | WARNING | ERROR
+ * @param string $level   Log level
+ *
+ * @see \Psr\Log\LogLevel constants
  *
  * @return void
  * @since 1.7.0
diff --git a/mod/discussions/views/default/object/discussion.php b/mod/discussions/views/default/object/discussion.php
index f51898a6559..5beb58ff1f0 100644
--- a/mod/discussions/views/default/object/discussion.php
+++ b/mod/discussions/views/default/object/discussion.php
@@ -16,7 +16,7 @@
 $poster = $entity->getOwnerEntity();
 if (!$poster instanceof ElggEntity) {
 	$msg = "User {$entity->owner_guid} could not be loaded, and is needed to display entity {$entity->guid}";
-	elgg_log($msg, 'WARNING');
+	elgg_log($msg, \Psr\Log\LogLevel::WARNING);
 	if ($full_view) {
 		throw new EntityNotFoundException($msg);
 	}