diff --git a/requirements.txt b/requirements.txt
index a2c8301..db86e28 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ asyncssh==2.23.0
     # via pproxy
 attrs==26.1.0
     # via service-identity
-certifi==2026.4.22
+certifi==2026.5.20
     # via aioquic
 cffi==2.0.0
     # via cryptography