diff --git a/Project_4/TEDCoinToss/requirements.txt b/Project_4/TEDCoinToss/requirements.txt
index a11c236..9a134cf 100644
--- a/Project_4/TEDCoinToss/requirements.txt
+++ b/Project_4/TEDCoinToss/requirements.txt
@@ -1,5 +1,5 @@
 attrs==19.3.0
-certifi==2020.4.5.1
+certifi==2022.12.7
 cffi==1.14.0
 chardet==3.0.4
 cplex==12.10.0.1