diff --git a/examples/requirements.txt b/examples/requirements.txt
index 115b802..0408eba 100644
--- a/examples/requirements.txt
+++ b/examples/requirements.txt
@@ -3,7 +3,7 @@ appnope==0.1.0 ; sys_platform == 'darwin'
 attrs==19.3.0
 backcall==0.1.0
 bleach==3.1.0
-certifi==2019.9.11
+certifi==2022.12.7
 decorator==4.4.0
 defusedxml==0.6.0
 entrypoints==0.3