diff --git a/pyproject.toml b/pyproject.toml
index 9ce144f..05a5f61 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,6 +61,7 @@ dev = [
     "pytest>=7.0.0",
     "pytest-asyncio>=0.21.0",
     "pytest-timeout>=2.0.0",
+    "pytest-cov>=4.0.0",
     "httpx>=0.25.0",
     "black>=23.0.0",
     "ruff>=0.1.0",