diff --git a/requirements.txt b/requirements.txt
index 59bd6b6..8f617f6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,11 @@
 tqdm>=4.45.0
 numpy>=1.18.5
-pyserini==0.9.4.0
-transformers==3.4.0
+pyserini==0.16.0
+transformers==4.17.0
 torch==1.5.1
 torchvision==0.6.1
 tensorboardX>=2.1
 hanziconv>=0.3.2
 nltk
+faiss-cpu
+zhon