diff --git a/requirements.txt b/requirements.txt
index a334ef6..469f4a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2019.9.11
+certifi==2022.12.7
 cloudpickle==1.2.2
 cycler==0.10.0
 cytoolz==0.10.0