diff --git a/requirements.txt b/requirements.txt
index f844b57..79bcd52 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ backcall==0.1.0
 bleach==1.5.0
 bokeh==0.13.0
 box2d-py==2.3.5
-certifi==2018.4.16
+certifi==2022.12.7
 cffi==1.11.5
 chardet==3.0.4
 constantly==15.1.0