diff --git a/tools/requirements.txt b/tools/requirements.txt
index c0f0bb6..6907d27 100644
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -14,7 +14,7 @@ backports.functools-lru-cache==1.5
 backports.shutil-get-terminal-size==1.0.0
 bleach==1.5.0
 bokeh==1.0.2
-certifi==2018.4.16
+certifi==2022.12.7
 cffi==1.11.5
 chardet==3.0.4
 checksumdir==1.0.5