diff --git a/setup.py b/setup.py
index 114235b..6770444 100644
--- a/setup.py
+++ b/setup.py
@@ -12,13 +12,14 @@ packages = [
     "tiktoken",
     "PyDeepLX",
     "google-generativeai",
+    "langdetect",
 ]
 
 
 setup(
     name="bbook_maker",
     description="The bilingual_book_maker is an AI translation tool that uses ChatGPT to assist users in creating multi-language versions of epub/txt files and books.",
-    version="0.7.2",
+    version="0.7.3",
     license="MIT",
     author="yihong0618",
     author_email="zouzou0208@gmail.com",