diff --git a/go.mod b/go.mod
index 4df408240399..c92dae6837f6 100644
--- a/go.mod
+++ b/go.mod
@@ -14,7 +14,7 @@ require (
 	github.com/dustinkirkland/golang-petname v0.0.0-20240428194347-eebcea082ee0
 	github.com/flosch/pongo2 v0.0.0-20200913210552-0d938eb266f3
 	github.com/fvbommel/sortorder v1.1.0
-	github.com/go-acme/lego/v4 v4.20.4
+	github.com/go-acme/lego/v4 v4.21.0
 	github.com/go-chi/chi/v5 v5.2.0
 	github.com/go-jose/go-jose/v4 v4.0.4
 	github.com/google/gopacket v1.1.19
diff --git a/go.sum b/go.sum
index 1aef103fc036..7cc14917521c 100644
--- a/go.sum
+++ b/go.sum
@@ -95,8 +95,8 @@ github.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/
 github.com/fsnotify/fsnotify v1.8.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw=
 github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
-github.com/go-acme/lego/v4 v4.20.4 h1:yCQGBX9jOfMbriEQUocdYm7EBapdTp8nLXYG8k6SqSU=
-github.com/go-acme/lego/v4 v4.20.4/go.mod h1:foauPlhnhoq8WUphaWx5U04uDc+JGhk4ZZtPz/Vqsjg=
+github.com/go-acme/lego/v4 v4.21.0 h1:arEW+8o5p7VI8Bk1kr/PDlgD1DrxtTH1gJ4b7mehL8o=
+github.com/go-acme/lego/v4 v4.21.0/go.mod h1:HrSWzm3Ckj45Ie3i+p1zKVobbQoMOaGu9m4up0dUeDI=
 github.com/go-chi/chi/v5 v5.2.0 h1:Aj1EtB0qR2Rdo2dG4O94RIU35w2lvQSj6BRA4+qwFL0=
 github.com/go-chi/chi/v5 v5.2.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
 github.com/go-ini/ini v1.67.0 h1:z6ZrTEZqSWOTyH2FlglNbNgARyHG8oLW9gMELqKr06A=