diff --git a/mypy.ini b/mypy.ini
index 65a62e25..74c4788b 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -5,7 +5,10 @@ show_error_codes = True
 # Exclude _files.py because mypy isn't smart enough to apply
 # the correct type narrowing and as this is an internal module
 # it's fine to just use Pyright.
-exclude = ^(src/conductor/_files\.py|_dev/.*\.py)$
+#
+# We also exclude our `tests` as mypy doesn't always infer
+# types correctly and Pyright will still catch any type errors.
+exclude = ^(src/conductor/_files\.py|_dev/.*\.py|tests/.*)$
 
 strict_equality = True
 implicit_reexport = True