diff --git a/dayu/requirements.txt b/dayu/requirements.txt
index b2a30c8..4261449 100644
--- a/dayu/requirements.txt
+++ b/dayu/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.6.16
+certifi==2022.12.7
 chardet==3.0.4
 colorama==0.4.1
 coloredlogs==10.0