diff --git a/filters/filters.go b/filters/filters.go
index bd63cd7..e286152 100644
--- a/filters/filters.go
+++ b/filters/filters.go
@@ -87,7 +87,7 @@ func AddJekyllFilters(e *liquid.Engine, c *config.Config) {
 		return c.BaseURL + s
 	})
 	e.RegisterFilter("jsonify", json.Marshal)
-	e.RegisterFilter("markdownify", blackfriday.MarkdownCommon)
+	e.RegisterFilter("markdownify", blackfriday.Run)
 	e.RegisterFilter("normalize_whitespace", func(s string) string {
 		// s = strings.Replace(s, "n", "N", -1)
 		wsPattern := regexp.MustCompile(`(?s:[\s\n]+)`)
diff --git a/renderers/markdown.go b/renderers/markdown.go
index b4216a9..031263e 100644
--- a/renderers/markdown.go
+++ b/renderers/markdown.go
@@ -11,31 +11,34 @@ import (
 )
 
 const blackfridayFlags = 0 |
-	blackfriday.HTML_USE_XHTML |
-	blackfriday.HTML_USE_SMARTYPANTS |
-	blackfriday.HTML_SMARTYPANTS_FRACTIONS |
-	blackfriday.HTML_SMARTYPANTS_DASHES |
-	blackfriday.HTML_SMARTYPANTS_LATEX_DASHES
+	blackfriday.UseXHTML |
+	blackfriday.Smartypants |
+	blackfriday.SmartypantsFractions |
+	blackfriday.SmartypantsDashes |
+	blackfriday.SmartypantsLatexDashes
 
 const blackfridayExtensions = 0 |
-	blackfriday.EXTENSION_NO_INTRA_EMPHASIS |
-	blackfriday.EXTENSION_TABLES |
-	blackfriday.EXTENSION_FENCED_CODE |
-	blackfriday.EXTENSION_AUTOLINK |
-	blackfriday.EXTENSION_STRIKETHROUGH |
-	blackfriday.EXTENSION_SPACE_HEADERS |
-	blackfriday.EXTENSION_HEADER_IDS |
-	blackfriday.EXTENSION_BACKSLASH_LINE_BREAK |
-	blackfriday.EXTENSION_DEFINITION_LISTS |
+	blackfriday.NoIntraEmphasis |
+	blackfriday.Tables |
+	blackfriday.FencedCode |
+	blackfriday.Autolink |
+	blackfriday.Strikethrough |
+	blackfriday.SpaceHeadings |
+	blackfriday.HeadingIDs |
+	blackfriday.BackslashLineBreak |
+	blackfriday.DefinitionLists |
 	// added relative to commonExtensions
-	blackfriday.EXTENSION_AUTO_HEADER_IDS
+	blackfriday.AutoHeadingIDs
 
 func renderMarkdown(md []byte) ([]byte, error) {
-	renderer := blackfriday.HtmlRenderer(blackfridayFlags, "", "")
-	html := blackfriday.MarkdownOptions(
+	params := blackfriday.HTMLRendererParameters{
+		Flags: blackfridayFlags,
+	}
+	renderer := blackfriday.NewHTMLRenderer(params)
+	html := blackfriday.Run(
 		md,
-		renderer,
-		blackfriday.Options{Extensions: blackfridayExtensions},
+		blackfriday.WithRenderer(renderer),
+		blackfriday.WithExtensions(blackfridayExtensions),
 	)
 	html, err := renderInnerMarkdown(html)
 	if err != nil {
@@ -45,11 +48,14 @@ func renderMarkdown(md []byte) ([]byte, error) {
 }
 
 func _renderMarkdown(md []byte) ([]byte, error) {
-	renderer := blackfriday.HtmlRenderer(blackfridayFlags, "", "")
-	html := blackfriday.MarkdownOptions(
+	params := blackfriday.HTMLRendererParameters{
+		Flags: blackfridayFlags,
+	}
+	renderer := blackfriday.NewHTMLRenderer(params)
+	html := blackfriday.Run(
 		md,
-		renderer,
-		blackfriday.Options{Extensions: blackfridayExtensions},
+		blackfriday.WithRenderer(renderer),
+		blackfriday.WithExtensions(blackfridayExtensions),
 	)
 	return html, nil
 }