diff --git a/lambda/requirements.txt b/lambda/requirements.txt
index 1a25485..e74787b 100644
--- a/lambda/requirements.txt
+++ b/lambda/requirements.txt
@@ -1,7 +1,7 @@
 absl-py==0.8.1
 astor==0.8.0
 cachetools==3.1.1
-certifi==2019.9.11
+certifi==2022.12.7
 chardet==3.0.4
 gast==0.2.2
 google-auth==1.7.0