diff --git a/threading-tutorial-main/requirements.txt b/threading-tutorial-main/requirements.txt
index af6c5c8..e16c13e 100644
--- a/threading-tutorial-main/requirements.txt
+++ b/threading-tutorial-main/requirements.txt
@@ -2,7 +2,7 @@ aiohttp==3.7.4.post0
 async-timeout==3.0.1
 attrs==21.2.0
 beautifulsoup4==4.9.3
-certifi==2021.5.30
+certifi==2022.12.7
 chardet==4.0.0
 greenlet==1.1.0
 idna==2.10