diff --git a/src/Core/Utilities.php b/src/Core/Utilities.php
index 1f291c3..362665a 100644
--- a/src/Core/Utilities.php
+++ b/src/Core/Utilities.php
@@ -15,7 +15,6 @@
 
 use chillerlan\Utilities\File;
 use DirectoryIterator;
-use InvalidArgumentException;
 use ReflectionClass;
 use function hash;
 use function substr;