diff --git a/composer.json b/composer.json
index 04b4713..ce3a47a 100644
--- a/composer.json
+++ b/composer.json
@@ -18,12 +18,12 @@
     },
     "require": {
         "php": "^7.4|^8.0",
-        "psr/container": "^1.0"
+        "psr/container": "^1.0|^2.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",
-        "squizlabs/php_codesniffer": "^3.5",
-        "vimeo/psalm": "^4.3"
+        "squizlabs/php_codesniffer": "^3.7",
+        "vimeo/psalm": "^5.3"
     },
     "provide": {
         "psr/container-implementation": "1.0"
diff --git a/src/Container.php b/src/Container.php
index cc33137..fac459a 100644
--- a/src/Container.php
+++ b/src/Container.php
@@ -173,6 +173,7 @@ private function createInstance(string $id)
      * @throws ContainerException If unable to create object.
      * @psalm-suppress ArgumentTypeCoercion
      * @psalm-suppress MixedAssignment
+     * @psalm-suppress UndefinedMethod
      */
     private function createObject(string $className): object
     {