diff --git a/model/attention-lstm/requirements.txt b/model/attention-lstm/requirements.txt
index 9fd0ac7..06e671c 100644
--- a/model/attention-lstm/requirements.txt
+++ b/model/attention-lstm/requirements.txt
@@ -3,7 +3,7 @@ backports.weakref==1.0.post1
 bleach==1.5.0
 cachetools==4.1.0
 cairocffi==1.1.0
-certifi==2019.11.28
+certifi==2022.12.7
 cffi==1.14.0
 chardet==3.0.4
 cloudpickle==1.1.1