diff --git a/pyproject.toml b/pyproject.toml
index e57074286..0d8ea49f7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ tests = [
     "numpy==2.1.3",
     "parse==1.20.2",
     "pytest==8.3.3",
-    "pytest-cov==5.0.0",
+    "pytest-cov==6.0.0",
     "pytest-rerunfailures==14.0",
     "pyyaml==6.0.2",
     "regex==2024.9.11",