diff --git a/requirements.txt b/requirements.txt
index ca1a9d0..1ae88df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ bs4==0.0.1
 CacheControl==0.12.6
 cachetools==4.1.0
 catalogue==1.0.0
-certifi==2020.6.20
+certifi==2022.12.7
 cffi==1.14.0
 chainer==6.5.0
 chardet==3.0.4