diff --git a/go.mod b/go.mod
index 0d7293dc6..8c190e1df 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	contrib.go.opencensus.io/exporter/zipkin v0.1.2
 	github.com/DataDog/opencensus-go-exporter-datadog v0.0.0-20200406135749-5c268882acf0
 	github.com/btcsuite/btcutil v1.0.2
-	github.com/caddyserver/certmagic v0.14.5
+	github.com/caddyserver/certmagic v0.15.1
 	github.com/cenkalti/backoff/v4 v4.1.1
 	github.com/cespare/xxhash/v2 v2.1.2
 	github.com/client9/misspell v0.3.4
diff --git a/go.sum b/go.sum
index 8a2ff6d4f..8e03a335f 100644
--- a/go.sum
+++ b/go.sum
@@ -193,8 +193,8 @@ github.com/bugsnag/osext v0.0.0-20130617224835-0dd3f918b21b/go.mod h1:obH5gd0Bsq
 github.com/bugsnag/panicwrap v0.0.0-20151223152923-e2c28503fcd0/go.mod h1:D/8v3kj0zr8ZAKg1AQ6crr+5VwKN5eIywRkfhyM/+dE=
 github.com/bytecodealliance/wasmtime-go v0.30.0 h1:WfYpr4WdqInt8m5/HvYinf+HrSEAIhItKIcth+qb1h4=
 github.com/bytecodealliance/wasmtime-go v0.30.0/go.mod h1:q320gUxqyI8yB+ZqRuaJOEnGkAnHh6WtJjMaT2CW4wI=
-github.com/caddyserver/certmagic v0.14.5 h1:y4HcFzLLBMsTv8sSlAPj5K55mvntX8e8ExcmB/lhO6w=
-github.com/caddyserver/certmagic v0.14.5/go.mod h1:/0VQ5og2Jxa5yBQ8eT80wWS7fi/DgNy1uXeXRUJ1Wj0=
+github.com/caddyserver/certmagic v0.15.1 h1:OAS245AZWQ1n2BD2gSBJPnKu3COTi2HNKj/6Td8aUQg=
+github.com/caddyserver/certmagic v0.15.1/go.mod h1:/0VQ5og2Jxa5yBQ8eT80wWS7fi/DgNy1uXeXRUJ1Wj0=
 github.com/cenkalti/backoff/v4 v4.1.1 h1:G2HAfAmvm/GcKan2oOQpBXOd2tT2G57ZnZGWa1PxPBQ=
 github.com/cenkalti/backoff/v4 v4.1.1/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
 github.com/census-instrumentation/opencensus-proto v0.2.1 h1:glEXhBS5PSLLv4IXzLA5yPRVX4bilULVyxxbrfOtDAk=