diff --git a/constants.py b/constants.py
index 629230e2..380c650a 100644
--- a/constants.py
+++ b/constants.py
@@ -6,6 +6,7 @@
 # https://python.langchain.com/en/latest/modules/indexes/document_loaders/examples/excel.html?highlight=xlsx#microsoft-excel
 from langchain.document_loaders import CSVLoader, PDFMinerLoader, TextLoader, UnstructuredExcelLoader, Docx2txtLoader
 from langchain.document_loaders import UnstructuredFileLoader, UnstructuredMarkdownLoader
+from langchain.document_loaders import UnstructuredHTMLLoader
 
 
 # load_dotenv()
@@ -43,6 +44,7 @@
 
 # https://python.langchain.com/en/latest/_modules/langchain/document_loaders/excel.html#UnstructuredExcelLoader
 DOCUMENT_MAP = {
+    ".html": UnstructuredHTMLLoader,
     ".txt": TextLoader,
     ".md": UnstructuredMarkdownLoader,
     ".py": TextLoader,