diff --git a/go.mod b/go.mod
index 2337bf4..e38a9a1 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/google/gopacket v1.1.17
 	github.com/google/nftables v0.0.0-20200210101420-1c56a1906fbf
 	github.com/google/renameio v0.1.0
-	github.com/insomniacslk/dhcp v0.0.0-20200210095418-45e5f320b2f0
+	github.com/insomniacslk/dhcp v0.0.0-20200306230118-99cbb09fb7b9
 	github.com/jpillora/backoff v1.0.0
 	github.com/krolaw/dhcp4 v0.0.0-20190909130307-a50d88189771
 	github.com/mdlayher/raw v0.0.0-20191009151244-50f2db8cc065
diff --git a/go.sum b/go.sum
index 1152cfa..9c076b6 100644
--- a/go.sum
+++ b/go.sum
@@ -47,6 +47,8 @@ github.com/google/renameio v0.1.0 h1:GOZbcHa3HfsPKPlmyPyN2KEohoMXOhdMbHrvbpl2QaA
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/insomniacslk/dhcp v0.0.0-20200210095418-45e5f320b2f0 h1:jzkAy3xl8j58ylC1cleuFZyBDCGy+swFc0cdxvVawkc=
 github.com/insomniacslk/dhcp v0.0.0-20200210095418-45e5f320b2f0/go.mod h1:CfMdguCK66I5DAUJgGKyNz8aB6vO5dZzkm9Xep6WGvw=
+github.com/insomniacslk/dhcp v0.0.0-20200306230118-99cbb09fb7b9 h1:5gifC0gFQ6VowQOXA1Yn1z4NFXlWRLbDT3oFxIZowJk=
+github.com/insomniacslk/dhcp v0.0.0-20200306230118-99cbb09fb7b9/go.mod h1:CfMdguCK66I5DAUJgGKyNz8aB6vO5dZzkm9Xep6WGvw=
 github.com/jpillora/backoff v1.0.0 h1:uvFg412JmmHBHw7iwprIxkPMI+sGQ4kzOWsMeHnm2EA=
 github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/jsimonetti/rtnetlink v0.0.0-20190606172950-9527aa82566a/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw=
diff --git a/internal/dhcp6/dhcp6.go b/internal/dhcp6/dhcp6.go
index 8ffc449..974b460 100644
--- a/internal/dhcp6/dhcp6.go
+++ b/internal/dhcp6/dhcp6.go
@@ -277,26 +277,21 @@ func (c *Client) ObtainOrRenew() bool {
 		return true
 	}
 	var newCfg Config
-	for _, opt := range reply.Options {
-		switch o := opt.(type) {
-		case *dhcpv6.OptIAForPrefixDelegation:
-			t1 := c.timeNow().Add(o.T1)
-			if t1.Before(newCfg.RenewAfter) || newCfg.RenewAfter.IsZero() {
-				newCfg.RenewAfter = t1
-			}
-			if sopt := o.GetOneOption(dhcpv6.OptionIAPrefix); sopt != nil {
-				prefix := sopt.(*dhcpv6.OptIAPrefix)
-				newCfg.Prefixes = append(newCfg.Prefixes, net.IPNet{
-					IP:   prefix.IPv6Prefix(),
-					Mask: net.CIDRMask(int(prefix.PrefixLength()), 128),
-				})
-			}
-
-		case *dhcpv6.OptDNSRecursiveNameServer:
-			for _, ns := range o.NameServers {
-				newCfg.DNS = append(newCfg.DNS, ns.String())
-			}
+	for _, o := range reply.Options.IAPD() {
+		t1 := c.timeNow().Add(o.T1)
+		if t1.Before(newCfg.RenewAfter) || newCfg.RenewAfter.IsZero() {
+			newCfg.RenewAfter = t1
 		}
+		if sopt := o.GetOneOption(dhcpv6.OptionIAPrefix); sopt != nil {
+			prefix := sopt.(*dhcpv6.OptIAPrefix)
+			newCfg.Prefixes = append(newCfg.Prefixes, net.IPNet{
+				IP:   prefix.IPv6Prefix(),
+				Mask: net.CIDRMask(int(prefix.PrefixLength()), 128),
+			})
+		}
+	}
+	for _, dns := range reply.Options.DNS() {
+		newCfg.DNS = append(newCfg.DNS, dns.String())
 	}
 	c.cfg = newCfg
 	return true