diff --git a/pyproject.toml b/pyproject.toml
index a98deb51d..8f9cec0b0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ tests = [
     "matplotlib==3.9.2",
     "numpy==2.1.2",
     "pytest==8.3.3",
-    "pytest-cov==5.0.0",
+    "pytest-cov==6.0.0",
     "joblib==1.4.2",
     "pandas==2.2.3",
     "openpyxl==3.1.5",