diff --git a/tests/extmod/uasyncio_heaplock.py b/tests/extmod/uasyncio_heaplock.py
index 771d3f0d97..3a92d36c9f 100644
--- a/tests/extmod/uasyncio_heaplock.py
+++ b/tests/extmod/uasyncio_heaplock.py
@@ -29,15 +29,15 @@ async def task(id, n, t):
 
 
 async def main():
-    t1 = asyncio.create_task(task(1, 4, 10))
-    t2 = asyncio.create_task(task(2, 4, 25))
+    t1 = asyncio.create_task(task(1, 4, 20))
+    t2 = asyncio.create_task(task(2, 2, 50))
 
     micropython.heap_lock()
 
     print("start")
     await asyncio.sleep_ms(1)
     print("sleep")
-    await asyncio.sleep_ms(100)
+    await asyncio.sleep_ms(70)
     print("finish")
 
     micropython.heap_unlock()
diff --git a/tests/extmod/uasyncio_heaplock.py.exp b/tests/extmod/uasyncio_heaplock.py.exp
index a967cc3197..68c6366c6f 100644
--- a/tests/extmod/uasyncio_heaplock.py.exp
+++ b/tests/extmod/uasyncio_heaplock.py.exp
@@ -6,6 +6,4 @@ sleep
 1 2
 2 1
 1 3
-2 2
-2 3
 finish