diff --git a/.gitignore b/.gitignore
index c740e7b..3c0deae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,3 +34,5 @@ _testmain.go
 /public/
 /requirements.txt
 /tmp
+
+.idea
\ No newline at end of file
diff --git a/go.mod b/go.mod
index e06318e..1c3d387 100644
--- a/go.mod
+++ b/go.mod
@@ -1,9 +1,9 @@
-module github.com/ikeikeikeike/go-sitemap-generator/v2
+module github.com/porozhnyy/go-sitemap-generator
 
 go 1.9
 
 require (
 	github.com/beevik/etree v1.1.0
-	github.com/clbanning/mxj v1.8.3
+	github.com/clbanning/mxj/v2 v2.5.7
 	github.com/fatih/structs v1.1.0
 )
diff --git a/go.sum b/go.sum
index 1112acd..c731882 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,6 @@
 github.com/beevik/etree v1.1.0 h1:T0xke/WvNtMoCqgzPhkX2r4rjY3GDZFi+FjpRZY2Jbs=
 github.com/beevik/etree v1.1.0/go.mod h1:r8Aw8JqVegEf0w2fDnATrX9VpkMcyFeM0FhwO62wh+A=
-github.com/clbanning/mxj v1.8.3 h1:2r/KCJi52w2MRz+K+UMa/1d7DdCjnLqYJfnbr7dYNWI=
-github.com/clbanning/mxj v1.8.3/go.mod h1:BVjHeAH+rl9rs6f+QIpeRl0tfu10SXn1pUSa5PVGJng=
+github.com/clbanning/mxj/v2 v2.5.7 h1:7q5lvUpaPF/WOkqgIDiwjBJaznaLCCBd78pi8ZyAnE0=
+github.com/clbanning/mxj/v2 v2.5.7/go.mod h1:hNiWqW14h+kc+MdF9C6/YoRfjEJoR3ou6tn/Qo+ve2s=
 github.com/fatih/structs v1.1.0 h1:Q7juDM0QtcnhCpeyLGQKyg4TOIghuNXrkL32pHAUMxo=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
diff --git a/stm/builder_url.go b/stm/builder_url.go
index f65dda3..51af5ee 100644
--- a/stm/builder_url.go
+++ b/stm/builder_url.go
@@ -97,15 +97,15 @@ func (su *sitemapURL) XML() []byte {
 	url := doc.CreateElement("url")
 
 	SetBuilderElementValue(url, su.data.URLJoinBy("loc", "host", "loc"), "loc")
-	if _, ok := SetBuilderElementValue(url, su.data, "lastmod"); !ok {
+	if _, ok := SetBuilderElementValue(url, su.data, "lastmod"); !ok && !su.opts.omitDefaultLastMod {
 		lastmod := url.CreateElement("lastmod")
 		lastmod.SetText(time.Now().Format(time.RFC3339))
 	}
-	if _, ok := SetBuilderElementValue(url, su.data, "changefreq"); !ok {
+	if _, ok := SetBuilderElementValue(url, su.data, "changefreq"); !ok && !su.opts.omitDefaultChangeFreq {
 		changefreq := url.CreateElement("changefreq")
 		changefreq.SetText("weekly")
 	}
-	if _, ok := SetBuilderElementValue(url, su.data, "priority"); !ok {
+	if _, ok := SetBuilderElementValue(url, su.data, "priority"); !ok && !su.opts.omitDefaultPriority {
 		priority := url.CreateElement("priority")
 		priority.SetText("0.5")
 	}
diff --git a/stm/builder_url_test.go b/stm/builder_url_test.go
index fea5740..545240a 100644
--- a/stm/builder_url_test.go
+++ b/stm/builder_url_test.go
@@ -7,7 +7,7 @@ import (
 	"time"
 
 	"github.com/beevik/etree"
-	"github.com/clbanning/mxj"
+	"github.com/clbanning/mxj/v2"
 )
 
 func TestBlank(t *testing.T) {
@@ -448,6 +448,48 @@ func TestAttrWithoutTypedef(t *testing.T) {
 	}
 }
 
+func TestOmitDefaults(t *testing.T) {
+	opts := Options{}
+	opts.SetOmitDefaultLastMod(true)
+	opts.SetOmitDefaultPriority(true)
+	opts.SetOmitDefaultChangeFreq(true)
+
+	smu, err := NewSitemapURL(&opts, URL{{"loc", "path"}, {"host", "http://example.com"}})
+
+	if err != nil {
+		t.Fatalf(`Fatal to validate! This is a critical error: %v`, err)
+	}
+
+	doc := etree.NewDocument()
+	doc.ReadFromBytes(smu.XML())
+
+	var elm *etree.Element
+	url := doc.SelectElement("url")
+
+	elm = url.SelectElement("loc")
+	if elm == nil {
+		t.Errorf(`Failed to generate xml that loc element is blank: %v`, elm)
+	}
+	if elm != nil && elm.Text() != "http://example.com/path" {
+		t.Errorf(`Failed to generate xml thats deferrent value in loc element: %v`, elm.Text())
+	}
+
+	elm = url.SelectElement("priority")
+	if elm != nil {
+		t.Errorf(`Failed to generate xml that omits the default priority element: %v`, elm)
+	}
+
+	elm = url.SelectElement("changefreq")
+	if elm != nil {
+		t.Errorf(`Failed to generate xml that omits the default changefreq element: %v`, elm)
+	}
+
+	elm = url.SelectElement("lastmod")
+	if elm != nil {
+		t.Errorf(`Failed to generate xml that omits the default lastmod element: %v`, elm)
+	}
+}
+
 func BenchmarkGenerateXML(b *testing.B) {
 
 	b.ReportAllocs()
diff --git a/stm/options.go b/stm/options.go
index ae2f0cb..a6e0f57 100644
--- a/stm/options.go
+++ b/stm/options.go
@@ -4,31 +4,37 @@ package stm
 func NewOptions() *Options {
 	// Default values
 	return &Options{
-		defaultHost:  "http://www.example.com",
-		sitemapsHost: "", // http://s3.amazonaws.com/sitemap-generator/,
-		publicPath:   "public/",
-		sitemapsPath: "sitemaps/",
-		filename:     "sitemap",
-		verbose:      true,
-		compress:     true,
-		pretty:       false,
-		adp:          NewFileAdapter(),
+		defaultHost:           "http://www.example.com",
+		sitemapsHost:          "", // http://s3.amazonaws.com/sitemap-generator/,
+		publicPath:            "public/",
+		sitemapsPath:          "sitemaps/",
+		filename:              "sitemap",
+		verbose:               true,
+		compress:              true,
+		pretty:                false,
+		adp:                   NewFileAdapter(),
+		omitDefaultLastMod:    true,
+		omitDefaultChangeFreq: true,
+		omitDefaultPriority:   true,
 	}
 }
 
 // Options exists for the Sitemap struct.
 type Options struct {
-	defaultHost  string
-	sitemapsHost string
-	publicPath   string
-	sitemapsPath string
-	filename     string
-	verbose      bool
-	compress     bool
-	pretty       bool
-	adp          Adapter
-	nmr          *Namer
-	loc          *Location
+	defaultHost           string
+	sitemapsHost          string
+	publicPath            string
+	sitemapsPath          string
+	filename              string
+	verbose               bool
+	compress              bool
+	pretty                bool
+	adp                   Adapter
+	nmr                   *Namer
+	loc                   *Location
+	omitDefaultLastMod    bool
+	omitDefaultChangeFreq bool
+	omitDefaultPriority   bool
 }
 
 // SetDefaultHost sets that arg from Sitemap.Finalize method
@@ -76,6 +82,20 @@ func (opts *Options) SetAdapter(adp Adapter) {
 	opts.adp = adp
 }
 
+func (opts *Options) SetOmitDefaultLastMod(omit bool) {
+	opts.omitDefaultLastMod = omit
+}
+
+// SetOmitDefaultChangeFreq controls whether to output a changefreq XML entity when none is provided in the URL builder
+func (opts *Options) SetOmitDefaultChangeFreq(omit bool) {
+	opts.omitDefaultChangeFreq = omit
+}
+
+// SetOmitDefaultPriority controls whether to output a Priority XML entity when none is provided in the URL builder
+func (opts *Options) SetOmitDefaultPriority(omit bool) {
+	opts.omitDefaultPriority = omit
+}
+
 // SitemapsHost sets that arg from Sitemap.SitemapsHost method
 func (opts *Options) SitemapsHost() string {
 	if opts.sitemapsHost != "" {
diff --git a/stm/sitemap_test.go b/stm/sitemap_test.go
index bb90e99..5478e03 100644
--- a/stm/sitemap_test.go
+++ b/stm/sitemap_test.go
@@ -5,7 +5,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/clbanning/mxj"
+	"github.com/clbanning/mxj/v2"
 )
 
 func TestSitemapGenerator(t *testing.T) {