diff --git a/requirements.txt b/requirements.txt
index 3951fc7..4dfa4f1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 astroid==1.6.4
 atomicwrites==1.1.5
 attrs==18.1.0
-certifi==2018.4.16
+certifi==2022.12.7
 chardet==3.0.4
 furl==1.0.1
 hprose==1.4.3