diff --git a/examples/yoti_example_flask/requirements.txt b/examples/yoti_example_flask/requirements.txt
index 81f2e9f6..fcb9c182 100644
--- a/examples/yoti_example_flask/requirements.txt
+++ b/examples/yoti_example_flask/requirements.txt
@@ -6,7 +6,7 @@
 #
 asn1==2.2.0
     # via yoti
-certifi==2018.4.16
+certifi==2022.12.7
     # via requests
 cffi==1.15.0
     # via