diff --git a/pyproject.toml b/pyproject.toml
index 666159a..d6d41d6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,5 +64,6 @@ line-length = 120
 
 [tool.pyright]
 include = ["src/refiners", "tests", "scripts"]
+strict = ["*"]
 exclude = ["**/__pycache__"]
 reportMissingTypeStubs = "warning"