diff --git a/requirements.txt b/requirements.txt
index 49a4b66..783f9a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ appnope==0.1.0
 backcall==0.1.0
 bibtexparser==1.1.0
 bokeh==2.0.1
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 cycler==0.10.0
 decorator==4.4.2