diff --git a/tests/requirements.txt b/tests/requirements.txt
index c0fe4d4c..f4e666d0 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,6 +1,7 @@
 # todo: add some version range or pinning latest versions
 # tests and coverages
 pytest
+pytest-asyncio
 pytest-xdist  # for parallel test execution
 pytest-rerunfailures  # for retrying flaky tests
 coverage