diff --git a/requirements.txt b/requirements.txt
index acb927f..aa9aa2d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 absl-py==0.8.1
 astor==0.8.0
-certifi==2019.9.11
+certifi==2022.12.7
 gast==0.2.2
 google-pasta==0.1.8
 grpcio==1.16.1