diff --git a/requirements.txt b/requirements.txt
index 50eb276..5f9b91e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ bleach==4.1.0
 bottle==0.12.19
 bottle-websocket==0.2.9
 bs4==0.0.1
-certifi==2021.5.30
+certifi==2022.12.7
 charset-normalizer==2.0.4
 chempy==0.7.10
 colorama==0.4.4