diff --git a/go.mod b/go.mod
index 0367a08..4e32bd9 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/felixge/httpsnoop v1.0.2 // indirect
 	github.com/go-pkgz/lgr v0.10.4
 	github.com/go-pkgz/repeater v1.1.3
-	github.com/go-pkgz/rest v1.12.1
+	github.com/go-pkgz/rest v1.12.2
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/gorilla/handlers v1.5.1
 	github.com/prometheus/client_golang v1.11.0
diff --git a/go.sum b/go.sum
index b140576..c5ad7e0 100644
--- a/go.sum
+++ b/go.sum
@@ -85,6 +85,8 @@ github.com/go-pkgz/rest v1.12.0 h1:zabW9ZLZzSyGsrTtEgzGUhGCfqcPnCr5nhfrap96mU4=
 github.com/go-pkgz/rest v1.12.0/go.mod h1:KUWAqbDteYGS/CiXftomQsKjtEOifXsJ36Ka0skYbmk=
 github.com/go-pkgz/rest v1.12.1 h1:s5EoHrHknaioHT/mGWaRMDk9GH2U/FmGMWQsCMj6III=
 github.com/go-pkgz/rest v1.12.1/go.mod h1:KUWAqbDteYGS/CiXftomQsKjtEOifXsJ36Ka0skYbmk=
+github.com/go-pkgz/rest v1.12.2 h1:AQ7uuBmMcufbiUBc4IS8aqDNMvRJlhtRpXLSNRitjVo=
+github.com/go-pkgz/rest v1.12.2/go.mod h1:KUWAqbDteYGS/CiXftomQsKjtEOifXsJ36Ka0skYbmk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
diff --git a/vendor/github.com/go-pkgz/rest/file_server.go b/vendor/github.com/go-pkgz/rest/file_server.go
index fab1691..ccf47df 100644
--- a/vendor/github.com/go-pkgz/rest/file_server.go
+++ b/vendor/github.com/go-pkgz/rest/file_server.go
@@ -155,7 +155,9 @@ type respWriter404 struct {
 
 func (w *respWriter404) WriteHeader(status int) {
 	w.status = status
-	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	if status == http.StatusNotFound {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	}
 	w.ResponseWriter.WriteHeader(status)
 }
 
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 7ed8322..55e4704 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -26,7 +26,7 @@ github.com/go-pkgz/lgr
 ## explicit; go 1.12
 github.com/go-pkgz/repeater
 github.com/go-pkgz/repeater/strategy
-# github.com/go-pkgz/rest v1.12.1
+# github.com/go-pkgz/rest v1.12.2
 ## explicit; go 1.16
 github.com/go-pkgz/rest
 github.com/go-pkgz/rest/logger