diff --git a/go.mod b/go.mod
index 0519c76..2710aae 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.14
 require (
 	github.com/LiamHaworth/go-tproxy v0.0.0-20190726054950-ef7efd7f24ed
 	github.com/antonfisher/nested-logrus-formatter v1.3.1
-	github.com/caddyserver/certmagic v0.15.2
+	github.com/caddyserver/certmagic v0.15.3
 	github.com/coreos/go-iptables v0.6.0
 	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
 	github.com/elazarl/goproxy v0.0.0-20210110162100-a92cc753f88e
diff --git a/go.sum b/go.sum
index fdf7c2e..9e820f8 100644
--- a/go.sum
+++ b/go.sum
@@ -56,8 +56,8 @@ github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
-github.com/caddyserver/certmagic v0.15.2 h1:OMTakTsLM1ZfzMDjwvYprfUgFzpVPh3u87oxMPwmeBc=
-github.com/caddyserver/certmagic v0.15.2/go.mod h1:qhkAOthf72ufAcp3Y5jF2RaGE96oip3UbEQRIzwe3/8=
+github.com/caddyserver/certmagic v0.15.3 h1:ScY3KVV1eMIUfW74i20kDnD4eWL8T0rG6S6Wnc6nc9U=
+github.com/caddyserver/certmagic v0.15.3/go.mod h1:qhkAOthf72ufAcp3Y5jF2RaGE96oip3UbEQRIzwe3/8=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=