--- a/go.sum
+++ b/go.sum
@@ -91,6 +91,7 @@ github.com/cncf/udpa/go v0.0.0-201912090
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
 github.com/coredns/caddy v1.1.0/go.mod h1:A6ntJQlAWuQfFlsd9hvigKbo2WS0VUs2l1e2F+BawD4=
+github.com/coredns/coredns v1.8.0 h1:U6Z6Ljuy5D8VKDquF1dUotUtFeoNt0PVCwSfIVYFC6s=
 github.com/coredns/coredns v1.8.0/go.mod h1:R/TQ2yPVKdafwpVXOh6NFN13ikgto21kOMPvOeFPS8o=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=