diff --git a/requirements.txt b/requirements.txt
index b935d2e..22e7ac1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ attrs==19.1.0
 backcall==0.1.0
 bleach==3.3.0
 bokeh==1.3.2
-certifi==2019.6.16
+certifi==2022.12.7
 Click==7.0
 cloudpickle==1.2.1
 cmarkgfm==0.4.2