diff --git a/src/ShoppinPal/Vend/DataObject/Entity/V2/Version.php b/src/ShoppinPal/Vend/DataObject/Entity/V2/Version.php
index d652789..dbc79e3 100644
--- a/src/ShoppinPal/Vend/DataObject/Entity/V2/Version.php
+++ b/src/ShoppinPal/Vend/DataObject/Entity/V2/Version.php
@@ -72,7 +72,7 @@ public function hasNewerVersion(string $entityType, ?int $lastRetrievedVersion,
 
         $validEntityTypes = array_diff(array_keys(get_object_vars($this)), $invalidEntityTypes);
 
-        if (!in_array($entityType, $invalidEntityTypes)) {
+        if (!in_array($entityType, $validEntityTypes)) {
             throw new ParameterException('Invalid entity type: ' . $entityType);
         }