diff --git a/requirements.txt b/requirements.txt
index cd1ebb8..587fce1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ flake8==3.6.0
 isort==4.3.4
 mypy==0.650
 Pygments==2.3.0
-pytest-asyncio==0.9.0
+pytest-asyncio==0.23.5.post1
 pytest-cov==2.6.0
 pytest-mypy==0.3.2
 pytest==4.0.1