diff --git a/requirements.txt b/requirements.txt
index 19244e9..12a1941 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ absl-py==0.9.0
 astor==0.8.1
 box2d-py==2.3.8
 cachetools==4.0.0
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 cloudpickle==1.3.0
 future==0.18.2