diff --git a/Python Project 4(Railway Announcement System)/requirements.txt b/Python Project 4(Railway Announcement System)/requirements.txt
index 5662bf7..d9cbb75 100644
--- a/Python Project 4(Railway Announcement System)/requirements.txt	
+++ b/Python Project 4(Railway Announcement System)/requirements.txt	
@@ -1,5 +1,5 @@
 beautifulsoup4==4.9.1
-certifi==2020.6.20
+certifi==2022.12.7
 chardet==3.0.4
 click==7.1.2
 docopt==0.6.2