diff --git a/composer.json b/composer.json
index 9ad51e8..f4359cb 100644
--- a/composer.json
+++ b/composer.json
@@ -40,8 +40,8 @@
   },
   "require-dev": {
     "phpunit/phpunit": "^9.5",
-    "vimeo/psalm": "^4.4",
-    "phpstan/phpstan": "^0.12.80",
+    "vimeo/psalm": "^4",
+    "phpstan/phpstan": "^1.8",
     "squizlabs/php_codesniffer": "^3.5",
     "symfony/http-foundation": "^5"
   },
diff --git a/src/UziUser.php b/src/UziUser.php
index 749fc05..600163f 100644
--- a/src/UziUser.php
+++ b/src/UziUser.php
@@ -172,9 +172,7 @@ public function setUziVersion(string $uzi_version): void
         $this->uzi_version = $uzi_version;
     }
 
-    /**
-     * @return mixed|string[]
-     */
+    #[\ReturnTypeWillChange]
     public function jsonSerialize()
     {
         return $this->toarray();