diff --git a/edinburgh_materials/flask-demo/requirements.txt b/edinburgh_materials/flask-demo/requirements.txt
index bc74b25..70bd1b6 100644
--- a/edinburgh_materials/flask-demo/requirements.txt
+++ b/edinburgh_materials/flask-demo/requirements.txt
@@ -1,6 +1,6 @@
 backcall==0.1.0
 bgs-etl==0.3.1
-certifi==2022.12.7
+certifi==2024.7.4
 chardet==3.0.4
 Click==7.0
 cx-Oracle==7.2.0