diff --git a/src/HydratorException.php b/src/HydratorException.php
index 5cc9811..7b080a8 100644
--- a/src/HydratorException.php
+++ b/src/HydratorException.php
@@ -4,6 +4,8 @@
 
 namespace Patchlevel\Hydrator;
 
-interface HydratorException
+use Throwable;
+
+interface HydratorException extends Throwable
 {
 }