diff --git a/data-access-kit/src/Persistence.php b/data-access-kit/src/Persistence.php
index b909a25..f500087 100644
--- a/data-access-kit/src/Persistence.php
+++ b/data-access-kit/src/Persistence.php
@@ -417,7 +417,7 @@ public function toRow(object $object): array
 		return $row;
 	}
 
-	private function determineValueType(mixed $value): ParameterType
+	private function determineValueType(mixed $value)
 	{
 		return match (true) {
 			is_bool($value) => ParameterType::BOOLEAN,