diff --git a/depnav/pyproject.toml b/depnav/pyproject.toml
index cac6ac1..c1335b0 100644
--- a/depnav/pyproject.toml
+++ b/depnav/pyproject.toml
@@ -67,3 +67,4 @@ python_version = "3.9"
 warn_return_any = true
 warn_unused_ignores = true
 ignore_missing_imports = true
+# CI type checking configured to only check src/ directory to avoid test fixture conflicts