diff --git a/libs/community/langchain_community/vectorstores/azure_cosmos_db_no_sql.py b/libs/community/langchain_community/vectorstores/azure_cosmos_db_no_sql.py
index 58a8d27ec4a..c75f4fcbb2d 100644
--- a/libs/community/langchain_community/vectorstores/azure_cosmos_db_no_sql.py
+++ b/libs/community/langchain_community/vectorstores/azure_cosmos_db_no_sql.py
@@ -845,6 +845,7 @@ class AzureCosmosDBNoSqlVectorSearch(VectorStore):
         operator_map = {
             "$eq": "=",
             "$ne": "!=",
+            "$in": "IN",
             "$lt": "<",
             "$lte": "<=",
             "$gt": ">",