diff --git a/kv/tests/kv_test.ts b/kv/tests/kv_test.ts
index 4e2a92d4..1ffe8a18 100644
--- a/kv/tests/kv_test.ts
+++ b/kv/tests/kv_test.ts
@@ -399,8 +399,9 @@ Deno.test("kv - history and watch cleanup", async () => {
     }
   }
 
+  await delay(500);
+
   // need to give some time for promises to be resolved
-  await delay(100);
   const nci = nc as NatsConnectionImpl;
   const min = nci.protocol.subscriptions.getMux() ? 1 : 0;
   assertEquals(nci.protocol.subscriptions.size(), min);