1 files changed, 1 insertions, 1 deletions
diff --git a/arper.py b/arper.py
index 2171e77..8f419f9 100644
--- a/arper.py
+++ b/arper.py
@@ -48,7 +48,7 @@ cfg.add_argument(
 @persistent.persistent_autoloaded_singleton()
 class Arper(persistent.Persistent):
     def __init__(
-            self, cached_state: Optional[BiDict[str, str]] = None
+            self, cached_state: Optional[BiDict] = None
     ) -> None:
         self.state = BiDict()
         if cached_state is not None: