diff --git a/requirements.txt b/requirements.txt
index cd91e75..e9a950e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.8.24
+certifi==2022.12.7
 cycler==0.10.0
 kiwisolver==1.1.0
 matplotlib==3.0.3