diff --git a/pyproject.toml b/pyproject.toml
index d2835fa..d6f4259 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,6 +61,7 @@ testpaths = ["tests"]
 pythonpath = ["src"]
 addopts = [
     "--import-mode=importlib",
+    "-p", "asyncio",
 ]
 
 [tool.pytest-asyncio]