diff --git a/Chapter10/Ch10/server/requirements.txt b/Chapter10/Ch10/server/requirements.txt
index 0ae6787..de74ead 100644
--- a/Chapter10/Ch10/server/requirements.txt
+++ b/Chapter10/Ch10/server/requirements.txt
@@ -1,5 +1,5 @@
 arrow==0.12.1
-certifi==2018.1.18
+certifi==2022.12.7
 chardet==3.0.4
 click==6.7
 Flask==0.12.2