diff --git a/sdk/cosmos/azure-cosmos/azure/cosmos/_synchronized_request.py b/sdk/cosmos/azure-cosmos/azure/cosmos/_synchronized_request.py
index 68e37caf1d9d..e338dc826ef9 100644
--- a/sdk/cosmos/azure-cosmos/azure/cosmos/_synchronized_request.py
+++ b/sdk/cosmos/azure-cosmos/azure/cosmos/_synchronized_request.py
@@ -59,7 +59,7 @@ def _request_body_from_data(data):
     if data is None or isinstance(data, str) or _is_readable_stream(data):
         return data
     if isinstance(data, (dict, list, tuple)):
-        json_dumped = json.dumps(data, separators=(",", ":"))
+        json_dumped = json.dumps(data, separators=(",", ":"), ensure_ascii=False)
 
         return json_dumped
     return None