diff --git a/pyproject.toml b/pyproject.toml
index afd23ab..9cad47e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,6 +11,7 @@ module = [
     "numpy.*",
     "pandas.*",
     "pytest.*",
+    "yaml.*",
 ]
 ignore_missing_imports = true