diff --git a/requirements/dev.txt b/requirements/dev.txt
index 5734a035f..0fedf62ce 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -5,7 +5,7 @@ mypy>=1.0, <2.0
 types-requests>=2.25.0, <3.0.0
 # testing
 pytest>=5.3.5, <8.0.0
-pytest-cov>=2.6.1, <5.0.0
+pytest-cov>=2.6.1, <6.0.0
 pytest-xdist>=1.28.0, <4.0.0 # for distributed testing, currently unused (see setup.cfg)
 pytest-lazy-fixture>=0.6.3, <0.7.0
 pytest-custom_exit_code>=0.3.0 # for notebook tests