diff --git a/pyproject.toml b/pyproject.toml
index 020572ee50..1914b4d151 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ tests = [
     "matplotlib>=3.5.0,<3.10",
     "mock>=5.1.0,<5.2",
     "pytest>=7.4.0,<8.4",
-    "pytest-cov>=4.0.0,<5.1",
+    "pytest-cov>=4.0.0,<6.1",
     "pytest-xdist>=3.5.0,<3.7",
     "scikit-rf"
 ]