diff --git a/tests/test_backends.py b/tests/test_backends.py
index ff1b6f2..de4074a 100644
--- a/tests/test_backends.py
+++ b/tests/test_backends.py
@@ -6,6 +6,7 @@
 from functools import partial
 from os import environ
 from pathlib import Path
+import time
 from typing import Any, Dict, List, Type
 
 import pytest
@@ -109,6 +110,8 @@ def test_create_generic_env_cached(self, tmp_path, monkeypatch):
         # one will be gone.
         environment_1.destroy(connection_key_1)
 
+        time.sleep(0.1)
+
         assert not environment_1.exists()
         assert not dup_environment_1.exists()