diff --git a/src/ContainerResolver.php b/src/ContainerResolver.php
index 6257106a..b72840a9 100644
--- a/src/ContainerResolver.php
+++ b/src/ContainerResolver.php
@@ -21,10 +21,6 @@ final class ContainerResolver
     private static $cache = [];
 
     /**
-     * @psalm-suppress MoreSpecificReturnType
-     * @psalm-suppress PropertyTypeCoercion
-     * @psalm-suppress LessSpecificReturnStatement
-     * @see https://github.com/vimeo/psalm/issues/3894
      * @psalm-return class-string|null
      */
     public static function resolveFromApplicationContainer(string $abstract): ?string
@@ -42,10 +38,6 @@ public static function resolveFromApplicationContainer(string $abstract): ?strin
 
         $concreteClass = get_class($concrete);
 
-        if (!$concreteClass) {
-            return null;
-        }
-
         static::$cache[$abstract] = $concreteClass;
 
         return $concreteClass;