diff --git a/backend/python/openvoice/requirements.txt b/backend/python/openvoice/requirements.txt
index ff463748..9cc35b88 100644
--- a/backend/python/openvoice/requirements.txt
+++ b/backend/python/openvoice/requirements.txt
@@ -13,6 +13,7 @@ openai
 python-dotenv
 pypinyin
 cn2an==0.5.22
+networkx==3.4.1
 jieba==0.42.1
 gradio
 langid==1.1.6