diff --git a/src/schema/type-defs.ts b/src/schema/type-defs.ts
index 6041341..ef86b6c 100644
--- a/src/schema/type-defs.ts
+++ b/src/schema/type-defs.ts
@@ -80,7 +80,7 @@ input CargoBikeCreateInput {
 }
 
 input CargoBikeUpdateInput {
-    id: Int!
+    id: ID!
     "see column A in info tabelle"
     group: Group
     name: String