diff --git a/pytest_tests/testsuites/failovers/test_failover_server.py b/pytest_tests/testsuites/failovers/test_failover_server.py
index bb5f997..47a95de 100644
--- a/pytest_tests/testsuites/failovers/test_failover_server.py
+++ b/pytest_tests/testsuites/failovers/test_failover_server.py
@@ -123,7 +123,7 @@ class TestFailoverServer(ClusterTestBase):
     @reporter.step("Verify objects")
     def verify_objects(self, nodes: list[StorageNode], storage_objects: list[StorageObjectInfo]) -> None:
         workers_count = os.environ.get("PARALLEL_CUSTOM_LIMIT", 50)
-        with parallel_workers_limit(workers_count):
+        with parallel_workers_limit(int(workers_count)):
             parallel(self._verify_object, storage_objects * len(nodes), node=itertools.cycle(nodes))
 
     @allure.title("Full shutdown node")