diff --git a/authn-service/requirements.txt b/authn-service/requirements.txt
index 96f4ca2..7cec145 100644
--- a/authn-service/requirements.txt
+++ b/authn-service/requirements.txt
@@ -1,5 +1,5 @@
 asn1crypto==0.24.0
-certifi==2020.6.20
+certifi==2023.7.22
 chardet==3.0.4
 click==7.1.2
 cryptography==2.6.1