diff --git a/legacy/requirements.txt b/legacy/requirements.txt
index 817f30f9..25d53eea 100644
--- a/legacy/requirements.txt
+++ b/legacy/requirements.txt
@@ -1,6 +1,6 @@
 absl-py==0.9.0
 cachetools==4.1.0
-certifi==2020.4.5.1
+certifi==2022.12.7
 chardet==3.0.4
 cycler==0.10.0
 gast==0.2.2