diff --git a/sdk/cosmos/azure-cosmos/CHANGELOG.md b/sdk/cosmos/azure-cosmos/CHANGELOG.md
index 090a2f07f8a0..e2cdbc414439 100644
--- a/sdk/cosmos/azure-cosmos/CHANGELOG.md
+++ b/sdk/cosmos/azure-cosmos/CHANGELOG.md
@@ -3,6 +3,7 @@
 - Added deprecation warning for "lazy" indexing mode. The backend no longer allows creating containers with this mode and will set them to consistent instead.
 - Fix for bug where options headers were not added to upsert_item function. Issue #11791 - thank you @aalapatirvbd.
 - Fixed error raised when a non string ID is used in an item. It now raises TypeError rather than AttributeError. Issue #11793 - thank you @Rabbit994.
+- Fixed #12570 - Thanks @sl-sandy.
 
 ** Bug fixes **
 - Fixed support for dicts as inputs for get_client APIs.
diff --git a/sdk/cosmos/azure-cosmos/azure/cosmos/container.py b/sdk/cosmos/azure-cosmos/azure/cosmos/container.py
index f5883c860091..9e1d86f24dca 100644
--- a/sdk/cosmos/azure-cosmos/azure/cosmos/container.py
+++ b/sdk/cosmos/azure-cosmos/azure/cosmos/container.py
@@ -282,7 +282,7 @@ def query_items_change_feed(
     def query_items(
         self,
         query,  # type: str
-        parameters=None,  # type: Optional[List[str]]
+        parameters=None,  # type: Optional[List[Dict[str, object]]]
         partition_key=None,  # type: Optional[Any]
         enable_cross_partition_query=None,  # type: Optional[bool]
         max_item_count=None,  # type: Optional[int]
@@ -299,7 +299,9 @@ def query_items(
         the WHERE clause.
 
         :param query: The Azure Cosmos DB SQL query to execute.
-        :param parameters: Optional array of parameters to the query. Ignored if no query is provided.
+        :param parameters: Optional array of parameters to the query.
+            Each parameter is a dict() with 'name' and 'value' keys.
+            Ignored if no query is provided.
         :param partition_key: Specifies the partition key value for the item.
         :param enable_cross_partition_query: Allows sending of more than one request to
             execute the query in the Azure Cosmos DB service.