diff --git a/adminer/include/bootstrap.inc.php b/adminer/include/bootstrap.inc.php
index 45f81367..84895396 100644
--- a/adminer/include/bootstrap.inc.php
+++ b/adminer/include/bootstrap.inc.php
@@ -1,6 +1,6 @@
 <?php
 function adminer_errors($errno, $errstr) {
-	return !!preg_match('~^(Trying to access array offset on value of type null|Undefined array key)~', $errstr);
+	return (bool)preg_match('~^(Trying to access array offset on( value of type)? null|Undefined array key)~', $errstr);
 }
 
 error_reporting(6135); // errors and warnings
diff --git a/composer.json b/composer.json
index 44845778..764580e1 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
         "GPL-2.0-only"
     ],
     "require": {
-        "php": "5.6 - 8.1",
+        "php": "5.6 - 8.3",
         "ext-pdo": "*",
         "ext-json": "*",
         "vrana/jush": "@dev",