diff --git a/requirements/testing.txt b/requirements/testing.txt
index c162ba5d..b20f873a 100644
--- a/requirements/testing.txt
+++ b/requirements/testing.txt
@@ -2,7 +2,7 @@
 aiohttp<4  # used for a WebSocket server mock
 pytest>=7.0.1,<9
 pytest-asyncio<1  # for async
-pytest-cov>=2,<6
+pytest-cov>=2,<7
 # while flake8 5.x have issues with Python 3.12, flake8 6.x requires Python >= 3.8.1,
 # so 5.x should be kept in order to stay compatible with Python 3.6/3.7
 flake8>=5.0.4,<8