diff --git a/pyproject.toml b/pyproject.toml
index 3a6a1eb..6e2382f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ tenacity = ">=8.2.0,<10.0"
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.0.0"
 pytest-asyncio = "^0.23.0"
-pytest-cov = "^4.1.0"
+pytest-cov = ">=4.1,<8.0"
 respx = "^0.21.0"
 ruff = "^0.15.0"