diff --git a/requirements.txt b/requirements.txt
index 6721fe5..dcaa128 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2016.2.28
+certifi==2022.12.7
 fire==0.1.3
 lmdb==0.94
 numpy==1.14.2