diff --git a/Gopkg.lock b/Gopkg.lock
index 9e979e9e..09cfa2f6 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -104,7 +104,7 @@
   branch = "master"
   name = "github.com/jedisct1/go-dnsstamps"
   packages = ["."]
-  revision = "d8908ceb62ed5ff9fe230d14cdde7727b90737e6"
+  revision = "1e4999280f861b465e03e21e4f84d838f2f02b38"
 
 [[projects]]
   branch = "master"
diff --git a/dnscrypt-proxy/sources.go b/dnscrypt-proxy/sources.go
index b8a8356c..83089217 100644
--- a/dnscrypt-proxy/sources.go
+++ b/dnscrypt-proxy/sources.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"encoding/csv"
 	"errors"
 	"fmt"
 	"io"
@@ -24,8 +23,7 @@ import (
 type SourceFormat int
 
 const (
-	SourceFormatV1 = iota
-	SourceFormatV2
+	SourceFormatV2 = iota
 )
 
 const (
@@ -129,9 +127,7 @@ type URLToPrefetch struct {
 func NewSource(xTransport *XTransport, urls []string, minisignKeyStr string, cacheFile string, formatStr string, refreshDelay time.Duration) (Source, []URLToPrefetch, error) {
 	_ = refreshDelay
 	source := Source{urls: urls}
-	if formatStr == "v1" {
-		source.format = SourceFormatV1
-	} else if formatStr == "v2" {
+	if formatStr == "v2" {
 		source.format = SourceFormatV2
 	} else {
 		return source, []URLToPrefetch{}, fmt.Errorf("Unsupported source format: [%s]", formatStr)
@@ -210,58 +206,13 @@ func NewSource(xTransport *XTransport, urls []string, minisignKeyStr string, cac
 }
 
 func (source *Source) Parse(prefix string) ([]RegisteredServer, error) {
-	if source.format == SourceFormatV1 {
-		return source.parseV1(prefix)
-	} else if source.format == SourceFormatV2 {
+	if source.format == SourceFormatV2 {
 		return source.parseV2(prefix)
 	}
 	dlog.Fatal("Unexpected source format")
 	return []RegisteredServer{}, nil
 }
 
-func (source *Source) parseV1(prefix string) ([]RegisteredServer, error) {
-	var registeredServers []RegisteredServer
-
-	csvReader := csv.NewReader(strings.NewReader(source.in))
-	records, err := csvReader.ReadAll()
-	if err != nil {
-		return registeredServers, nil
-	}
-	for lineNo, record := range records {
-		if len(record) == 0 {
-			continue
-		}
-		if len(record) < 14 {
-			return registeredServers, fmt.Errorf("Parse error at line %d", 1+lineNo)
-		}
-		if lineNo == 0 {
-			continue
-		}
-		name := prefix + record[0]
-		description := record[2]
-		serverAddrStr := record[10]
-		providerName := record[11]
-		serverPkStr := record[12]
-		props := stamps.ServerInformalProperties(0)
-		if strings.EqualFold(record[7], "yes") {
-			props |= stamps.ServerInformalPropertyDNSSEC
-		}
-		if strings.EqualFold(record[8], "yes") {
-			props |= stamps.ServerInformalPropertyNoLog
-		}
-		stamp, err := stamps.NewDNSCryptServerStampFromLegacy(serverAddrStr, serverPkStr, providerName, props)
-		if err != nil {
-			return registeredServers, err
-		}
-		registeredServer := RegisteredServer{
-			name: name, stamp: stamp, description: description,
-		}
-		dlog.Debugf("Registered [%s] with stamp [%s]", name, stamp.String())
-		registeredServers = append(registeredServers, registeredServer)
-	}
-	return registeredServers, nil
-}
-
 func (source *Source) parseV2(prefix string) ([]RegisteredServer, error) {
 	var registeredServers []RegisteredServer
 	in := string(source.in)
diff --git a/vendor/github.com/jedisct1/go-dnsstamps/Gopkg.lock b/vendor/github.com/jedisct1/go-dnsstamps/Gopkg.lock
index d5b6c780..bef2d009 100644
--- a/vendor/github.com/jedisct1/go-dnsstamps/Gopkg.lock
+++ b/vendor/github.com/jedisct1/go-dnsstamps/Gopkg.lock
@@ -1,18 +1,9 @@
 # This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
 
 
-[[projects]]
-  branch = "master"
-  name = "golang.org/x/crypto"
-  packages = [
-    "ed25519",
-    "ed25519/internal/edwards25519"
-  ]
-  revision = "d6449816ce06963d9d136eee5a56fca5b0616e7e"
-
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "5046e265393bd5e54f570ce29ae8bc6fa3f30ef5110e922996540400f287c64a"
+  inputs-digest = "ab4fef131ee828e96ba67d31a7d690bd5f2f42040c6766b1b12fe856f87e0ff7"
   solver-name = "gps-cdcl"
   solver-version = 1
diff --git a/vendor/github.com/jedisct1/go-dnsstamps/dnsstamps.go b/vendor/github.com/jedisct1/go-dnsstamps/dnsstamps.go
index 658c6d89..12ff01a0 100644
--- a/vendor/github.com/jedisct1/go-dnsstamps/dnsstamps.go
+++ b/vendor/github.com/jedisct1/go-dnsstamps/dnsstamps.go
@@ -9,8 +9,6 @@ import (
 	"net"
 	"strconv"
 	"strings"
-
-	"golang.org/x/crypto/ed25519"
 )
 
 const DefaultPort = 443
@@ -60,7 +58,7 @@ func NewDNSCryptServerStampFromLegacy(serverAddrStr string, serverPkStr string,
 		serverAddrStr = fmt.Sprintf("%s:%d", serverAddrStr, DefaultPort)
 	}
 	serverPk, err := hex.DecodeString(strings.Replace(serverPkStr, ":", "", -1))
-	if err != nil || len(serverPk) != ed25519.PublicKeySize {
+	if err != nil || len(serverPk) != 32 {
 		return ServerStamp{}, fmt.Errorf("Unsupported public key: [%s]", serverPkStr)
 	}
 	return ServerStamp{