diff --git a/requirements.txt b/requirements.txt
index 0097b3f..4049dc7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 blinker==1.4
-certifi==2018.8.24
+certifi==2022.12.7
 cloudpickle==0.2.2
 docutils==0.13.1
 doit==0.30.3