diff --git a/pyproject.toml b/pyproject.toml
index 349c11f..30fdee2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,6 +47,9 @@ source = ["src"]
 [tool.coverage.report]
 show_missing = true
 
+[tool.pytest.ini_options]
+trio_mode = true
+
 [tool.ruff]
 lint.ignore = ["B905", "C901", "E402", "E501"]
 lint.select = ["B", "C", "E", "F", "W"]
diff --git a/pytest.ini b/pytest.ini
deleted file mode 100644
index 7fedfe2..0000000
--- a/pytest.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[pytest]
-trio_mode=1