diff --git a/pyproject.toml b/pyproject.toml
index 807df6a..c9257a5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,3 +45,6 @@ extract = "papis_extract:main"
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
+
+[tool.pyright]
+typeCheckingMode = "strict"