diff --git a/go.mod b/go.mod
index 59358d05ff3e..9eb635b016dc 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/MakeNowJust/heredoc v1.0.0
 	github.com/Masterminds/sprig/v3 v3.2.3
 	github.com/blang/semver v3.5.1+incompatible
-	github.com/coredns/corefile-migration v1.0.20
+	github.com/coredns/corefile-migration v1.0.21
 	github.com/davecgh/go-spew v1.1.1
 	github.com/docker/distribution v2.8.1+incompatible
 	github.com/drone/envsubst/v2 v2.0.0-20210730161058-179042472c46
diff --git a/go.sum b/go.sum
index 82dcacd3beef..02d844908975 100644
--- a/go.sum
+++ b/go.sum
@@ -122,8 +122,8 @@ github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnht
 github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/coredns/caddy v1.1.0 h1:ezvsPrT/tA/7pYDBZxu0cT0VmWk75AfIaf6GSYCNMf0=
 github.com/coredns/caddy v1.1.0/go.mod h1:A6ntJQlAWuQfFlsd9hvigKbo2WS0VUs2l1e2F+BawD4=
-github.com/coredns/corefile-migration v1.0.20 h1:MdOkT6F3ehju/n9tgxlGct8XAajOX2vN+wG7To4BWSI=
-github.com/coredns/corefile-migration v1.0.20/go.mod h1:XnhgULOEouimnzgn0t4WPuFDN2/PJQcTxdWKC5eXNGE=
+github.com/coredns/corefile-migration v1.0.21 h1:W/DCETrHDiFo0Wj03EyMkaQ9fwsmSgqTCQDHpceaSsE=
+github.com/coredns/corefile-migration v1.0.21/go.mod h1:XnhgULOEouimnzgn0t4WPuFDN2/PJQcTxdWKC5eXNGE=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.1.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=