diff --git a/internal/healthcheck/dns/dns.go b/internal/healthcheck/dns/dns.go
index e9c3a94c..51e0d548 100644
--- a/internal/healthcheck/dns/dns.go
+++ b/internal/healthcheck/dns/dns.go
@@ -44,12 +44,12 @@ func concatAddrPorts(addrs [][]netip.AddrPort) []netip.AddrPort {
 var ErrLookupNoIPs = errors.New("no IPs found from DNS lookup")
 
 func (c *Client) Check(ctx context.Context) error {
-	dnsAddr := c.serverAddrs[c.dnsIPIndex].Addr()
+	dnsAddr := c.serverAddrs[c.dnsIPIndex].String()
 	resolver := &net.Resolver{
 		PreferGo: true,
 		Dial: func(ctx context.Context, _, _ string) (net.Conn, error) {
 			dialer := net.Dialer{}
-			return dialer.DialContext(ctx, "udp", dnsAddr.String())
+			return dialer.DialContext(ctx, "udp", dnsAddr)
 		},
 	}
 	ips, err := resolver.LookupIP(ctx, "ip", "github.com")