diff --git a/pyproject.toml b/pyproject.toml
index 739f4bf90..5e028833d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ toml = "^0.10.2"
 sphinx-rtd-theme = "^1.0.0"
 sphinx-automodapi = "^0.14"
 pytest-cov = "^3.0.0"
-pytest-asyncio = "^0.16.0"
+pytest-asyncio = "^0.18.3"
 openapi-parser = "^0.2.6"
 autopep8 = "^1.6.0"
 prance = "^0.21.8"