diff --git a/notary/requirements.txt b/notary/requirements.txt
index 80c3041..4f1e5a9 100644
--- a/notary/requirements.txt
+++ b/notary/requirements.txt
@@ -5,7 +5,7 @@ attrs==19.2.0
 autopep8==1.4.4
 base58==1.0.3
 blocksec2go==1.1
-certifi==2019.9.11
+certifi==2022.12.7
 cffi==1.12.3
 chardet==3.0.4
 cryptography==3.3.2