diff --git a/blockapi/v2/api/subscan.py b/blockapi/v2/api/subscan.py
index 940673a..25bd339 100644
--- a/blockapi/v2/api/subscan.py
+++ b/blockapi/v2/api/subscan.py
@@ -143,6 +143,7 @@ def _get_api_options(blockchain: Blockchain, base_url: str) -> ApiOptions:
         return ApiOptions(
             blockchain=blockchain,
             base_url=base_url,
+            rate_limit=1,
             start_offset=0,
             max_items_per_page=100,
             page_offset_step=1,