diff --git a/extension/definition_list_test.go b/extension/definition_list_test.go
index 2ee3c61..6280a64 100644
--- a/extension/definition_list_test.go
+++ b/extension/definition_list_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestDefinitionList(t *testing.T) {
diff --git a/extension/footnote_test.go b/extension/footnote_test.go
index 0f2e0b5..447d177 100644
--- a/extension/footnote_test.go
+++ b/extension/footnote_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestFootnote(t *testing.T) {
diff --git a/extension/strikethrough_test.go b/extension/strikethrough_test.go
index 05660ee..2569bff 100644
--- a/extension/strikethrough_test.go
+++ b/extension/strikethrough_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestStrikethrough(t *testing.T) {
diff --git a/extension/table_test.go b/extension/table_test.go
index 655f3fc..baacdf7 100644
--- a/extension/table_test.go
+++ b/extension/table_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestTable(t *testing.T) {
diff --git a/extension/tasklist_test.go b/extension/tasklist_test.go
index 594471f..6a04cba 100644
--- a/extension/tasklist_test.go
+++ b/extension/tasklist_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestTaskList(t *testing.T) {
diff --git a/extension/typographer_test.go b/extension/typographer_test.go
index bc1b21f..0b1b66f 100644
--- a/extension/typographer_test.go
+++ b/extension/typographer_test.go
@@ -4,8 +4,8 @@ import (
 	"testing"
 
 	"github.com/yuin/goldmark"
-	"github.com/yuin/goldmark/testutil"
 	"github.com/yuin/goldmark/renderer/html"
+	"github.com/yuin/goldmark/testutil"
 )
 
 func TestTypographer(t *testing.T) {