diff --git a/notifications_utils/clients/redis/annual_limit.py b/notifications_utils/clients/redis/annual_limit.py
index 2f6b25d8..732e62e0 100644
--- a/notifications_utils/clients/redis/annual_limit.py
+++ b/notifications_utils/clients/redis/annual_limit.py
@@ -57,11 +57,14 @@ def annual_limit_status_key(service_id):
     return f"annual-limit:{service_id}:status"
 
 
-def decode_byte_dict(dict: dict):
+def decode_byte_dict(dict: dict, value_type=str):
     """
     Redis-py returns byte strings for keys and values. This function decodes them to UTF-8 strings.
     """
-    return {key.decode("utf-8"): value.decode("utf-8") for key, value in dict.items()}
+    # Check if expected_value_type is one of the allowed types
+    if value_type not in {int, float, str}:
+        raise ValueError("expected_value_type must be int, float, or str")
+    return {key.decode("utf-8"): value_type(value.decode("utf-8")) for key, value in dict.items()}
 
 
 class RedisAnnualLimit:
@@ -84,7 +87,7 @@ def get_all_notification_counts(self, service_id: str):
         """
         Retrieves all daily notification metrics for a service.
         """
-        return decode_byte_dict(self._redis_client.get_all_from_hash(annual_limit_notifications_key(service_id)))
+        return decode_byte_dict(self._redis_client.get_all_from_hash(annual_limit_notifications_key(service_id)), int)
 
     def reset_all_notification_counts(self, service_ids=None):
         """