diff --git a/pyproject.toml b/pyproject.toml
index a83fa80..2dd1bd2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ coveralls = "^3.0.1"
 pylint = "^2.6.0"
 pep8 = "^1.7.1"
 pre-commit = "^2.9.3"
-pytest-cov = "^3.0.0"
+pytest-cov = "^6.0.0"
 poethepoet = "^0.16.0"
 pytest-print = "^0.3.0"
 debugpy = "^1.6.0"