diff --git a/src/Infrastructure/DefinitionStorage.php b/src/Infrastructure/DefinitionStorage.php
index af58a6d..5af0d0d 100644
--- a/src/Infrastructure/DefinitionStorage.php
+++ b/src/Infrastructure/DefinitionStorage.php
@@ -9,7 +9,6 @@
 use ReflectionUnionType;
 use RuntimeException;
 use Yiisoft\Definitions\Exception\CircularReferenceException;
-use Yiisoft\Definitions\Infrastructure\DefinitionExtractor;
 
 /**
  * Stores service definitions and checks if a definition could be instantiated.