diff --git a/wordcloud_demo/requirements.txt b/wordcloud_demo/requirements.txt
index 8bc10c9..ea38e06 100644
--- a/wordcloud_demo/requirements.txt
+++ b/wordcloud_demo/requirements.txt
@@ -3,7 +3,7 @@ astroid==1.5.3
 attrs==17.3.0
 Babel==2.5.1
 bleach==2.1.2
-certifi==2017.11.5
+certifi==2022.12.7
 chardet==3.0.4
 click==6.7
 colorama==0.3.9