diff --git a/pyproject.toml b/pyproject.toml
index 03035383..5a25d73a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -187,7 +187,7 @@ known-local-folder = ["apify_client"]
 max-branches = 18
 
 [tool.pytest.ini_options]
-addopts = "-r a --verbose"
+addopts = "-r a --verbose --dist worksteal"
 asyncio_default_fixture_loop_scope = "function"
 asyncio_mode = "auto"
 pythonpath = ["."]
diff --git a/tests/integration/test_build.py b/tests/integration/test_build.py
index 2f1bd1ce..0da69b36 100644
--- a/tests/integration/test_build.py
+++ b/tests/integration/test_build.py
@@ -185,17 +185,18 @@ async def test_build_delete_and_abort(client: ApifyClient | ApifyClientAsync) ->
     actor_client = client.actor(created_actor.id)
 
     try:
-        # Build both versions - we need 2 builds because we can't delete the default build
+        # Both versions are built because the default build cannot be deleted. `build` returns as soon as the
+        # build is queued, so starting both before awaiting either lets the platform run them concurrently.
         first_build = await maybe_await(actor_client.build(version_number='0.1'))
         assert isinstance(first_build, Build)
-        first_build_client = client.build(first_build.id)
-        await maybe_await(first_build_client.wait_for_finish())
-
         second_build = await maybe_await(actor_client.build(version_number='0.2'))
         assert isinstance(second_build, Build)
+
+        first_build_client = client.build(first_build.id)
         second_build_client = client.build(second_build.id)
 
-        # Wait for the second build to finish
+        await maybe_await(first_build_client.wait_for_finish())
+
         finished_build = await maybe_await(second_build_client.wait_for_finish())
         assert isinstance(finished_build, Build)
         assert finished_build.status in ('SUCCEEDED', 'FAILED')
diff --git a/tests/integration/test_request_queue.py b/tests/integration/test_request_queue.py
index 33446d7f..692be3c6 100644
--- a/tests/integration/test_request_queue.py
+++ b/tests/integration/test_request_queue.py
@@ -573,26 +573,23 @@ async def test_request_queue_unlock_requests(client: ApifyClient | ApifyClientAs
 
         await ensure_queue_is_populated(rq_client, expected_count=5)
 
-        result = await maybe_await(rq_client.list_and_lock_head(limit=3, lock_duration=timedelta(seconds=60)))
-        assert isinstance(result, LockedRequestQueueHead)
-        lock_response = result
+        lock_response = await maybe_await(rq_client.list_and_lock_head(limit=3, lock_duration=timedelta(seconds=60)))
+        assert isinstance(lock_response, LockedRequestQueueHead)
         assert len(lock_response.items) == 3
-        locked_ids = {item.id for item in lock_response.items}
 
-        # Locks are acknowledged before they are visible to subsequent reads, so unlocking immediately can
-        # see fewer locks than were just acquired. Since locked requests are excluded from the queue head,
-        # poll `list_head` until the locked IDs disappear from it (best-effort mitigation of the race).
-        async def all_locks_visible() -> bool:
-            head = await maybe_await(rq_client.list_head(limit=5))
-            assert isinstance(head, RequestQueueHead)
-            return locked_ids.isdisjoint(item.id for item in head.items)
+        # Locks are acknowledged before they are all visible to `unlock_requests`, so a single call can report
+        # fewer locks than were just acquired. Each call unlocks whatever is visible to it, so the counts are
+        # accumulated until every lock is accounted for.
+        unlocked_counts: list[int] = []
 
-        await poll_until_condition(all_locks_visible)
+        async def unlocked_so_far() -> int:
+            unlock_response = await maybe_await(rq_client.unlock_requests())
+            assert isinstance(unlock_response, UnlockRequestsResult)
+            unlocked_counts.append(unlock_response.unlocked_count)
+            return sum(unlocked_counts)
 
-        # Unlock all requests
-        unlock_response = await maybe_await(rq_client.unlock_requests())
-        assert isinstance(unlock_response, UnlockRequestsResult)
-        assert unlock_response.unlocked_count == 3
+        unlocked_total = await poll_until_condition(unlocked_so_far, lambda total: total == 3)
+        assert unlocked_total == 3
     finally:
         await maybe_await(rq_client.delete())