diff --git a/Chapter17/requirements.txt b/Chapter17/requirements.txt
index 2eeea20..d346241 100644
--- a/Chapter17/requirements.txt
+++ b/Chapter17/requirements.txt
@@ -1,5 +1,5 @@
 aiofiles==0.5.0
-certifi==2020.6.20
+certifi==2022.12.7
 click==7.1.2
 cycler==0.10.0
 dill==0.3.2