diff --git a/tests/requirements-py3.txt b/tests/requirements-py3.txt
index d97c4b8ee..d207c5fb0 100644
--- a/tests/requirements-py3.txt
+++ b/tests/requirements-py3.txt
@@ -2,7 +2,7 @@
 jmespath
 mitmproxy; python_version >= '3.6'
 mitmproxy<4.0.0; python_version < '3.6'
-pytest
+pytest < 5.4
 pytest-cov
 pytest-twisted >= 1.11
 pytest-xdist