diff --git a/code/requirements.txt b/code/requirements.txt
index 949e060..e361994 100644
--- a/code/requirements.txt
+++ b/code/requirements.txt
@@ -1,7 +1,7 @@
 pyyaml
 tqdm
 pandas
-keras==2.2.4
+keras==2.13.1
 keras-bert==0.68.1
 cn2an==0.3.6
 thulac==0.2.0