diff --git a/requirements.txt b/requirements.txt
index 84bf557..86d5251 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 fastapi==0.89.1
 gradio==3.16.2
+SentencePiece==0.1.94
 transformers==4.26.0
 uvicorn==0.20.0
 scipy