diff --git a/pyproject.toml b/pyproject.toml
index 67c57e3..9b285b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ Homepage = "https://github.com/msetina/moj-elektro-v1"
 testing = [
     "moj-elektro-v1",
     "pytest>=6.1.1",
-    "pytest-cov>=4.0,<5.1",
+    "pytest-cov>=4.0,<6.1",
 ]
 mypy = [
     "moj-elektro-v1",