diff --git a/src/utils/polling.test.js b/src/utils/polling.test.js
index 18c3fbf..3c27c94 100644
--- a/src/utils/polling.test.js
+++ b/src/utils/polling.test.js
@@ -14,7 +14,7 @@ describe("Polling", () => {
     const poll = new Polling(callback, 100);
     const spy = jest.spyOn(poll, "callback");
     poll.start();
-    await sleep(500);
+    await sleep(501); // +1 for safety
     poll.end();
     await sleep(500);
     expect(spy).toHaveBeenCalledTimes(5);
@@ -25,7 +25,7 @@ describe("Polling", () => {
     const poll = new Polling(callback, 100);
     const spy = jest.spyOn(poll, "callback");
     poll.start();
-    await sleep(1000);
+    await sleep(1001); // +1 for safety
     expect(spy).toHaveBeenCalledTimes(5);
   });
 });