diff --git a/pyproject.toml b/pyproject.toml
index e8b1f98..0ec6791 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -134,7 +134,20 @@ convention = "google"
 
 [tool.mypy]
 strict = true
+disallow_any_decorated = true
 disallow_any_explicit = true
+disallow_any_unimported = true
+warn_unreachable = true
+enable_error_code = [
+    "deprecated",
+    "exhaustive-match",
+    "ignore-without-code",
+    "possibly-undefined",
+    "truthy-bool",
+    "truthy-iterable",
+    "unimported-reveal",
+    "unused-awaitable",
+]
 files = ["src", "tests"]
 
 [tool.vulture]