diff --git a/pyproject.toml b/pyproject.toml
index aa31ab34..bbccb271 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -240,6 +240,10 @@ asyncio_mode = "auto"
 testpaths = [
     "tests",
 ]
+filterwarnings = [
+    "error",
+    "ignore::pytest.PytestUnraisableExceptionWarning",
+]
 
 [tool.coverage.run]
 branch = false