diff --git a/pyproject.toml b/pyproject.toml
index ab66980bd..02a74cb41 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,7 @@ dev = [
     "pylsp-rope >=0.1,<0.2",
     "pytest >=7.1,<9.0",
     "pytest-asyncio >=0.20,<0.25",
-    "pytest-cov >=4,<6",
+    "pytest-cov >=4,<7",
     "python-lsp-server >=1.5,<2.0",
     "reuse >=4.0,<5.0",
     "ruff >=0.8.0",