diff --git a/diagram-editor/dist.tar.gz b/diagram-editor/dist.tar.gz
index a5db859e..58f31f54 100644
Binary files a/diagram-editor/dist.tar.gz and b/diagram-editor/dist.tar.gz differ
diff --git a/diagram-editor/frontend/utils/connection.ts b/diagram-editor/frontend/utils/connection.ts
index 75334374..9eb016c9 100644
--- a/diagram-editor/frontend/utils/connection.ts
+++ b/diagram-editor/frontend/utils/connection.ts
@@ -160,7 +160,7 @@ function getOutputCardinality(
   handleId: string | null | undefined,
 ): CardinalityType {
   if (handleId === HandleId.DataStream) {
-    return CardinalityType.Single;
+    return CardinalityType.Many;
   }
 
   switch (type) {