diff --git a/basic_demo/requirements.txt b/basic_demo/requirements.txt
index 95dccd6..c74e6a3 100644
--- a/basic_demo/requirements.txt
+++ b/basic_demo/requirements.txt
@@ -9,6 +9,7 @@ tiktoken>=0.7.0
 accelerate>=0.30.1
 sentence_transformers>=2.7.0
 vllm>=0.4.3
+peft>=0.11.1
 
 # web demo
 gradio>=4.31.5