diff --git a/assignment1/requirements.txt b/assignment1/requirements.txt
old mode 100755
new mode 100644
index e06a766..a2cd072
--- a/assignment1/requirements.txt
+++ b/assignment1/requirements.txt
@@ -7,7 +7,7 @@ appnope==0.1.0
 argparse==1.2.1
 backports-abc==0.4
 backports.ssl-match-hostname==3.5.0.1
-certifi==2015.11.20.1
+certifi==2022.12.7
 cycler==0.10.0
 decorator==4.0.6
 future==0.16.0