diff --git a/css/css.go b/css/css.go
index 92f885bf1..e618cea89 100644
--- a/css/css.go
+++ b/css/css.go
@@ -59,9 +59,8 @@ type cssMinifier struct {
 
 // Minifier is a CSS minifier.
 type Minifier struct {
-	KeepCSS2     bool // DEPRECATED, use Version = 2
-	Precision    int  // number of significant digits
-	newPrecision int  // precision for new numbers
+	Precision    int // number of significant digits
+	newPrecision int // precision for new numbers
 	Inline       bool
 	Version      int
 }
@@ -148,11 +147,7 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, params map[stri
 		o.Inline = params != nil && params["inline"] == "1"
 	}
 	if o.Version <= 0 {
-		if o.KeepCSS2 {
-			o.Version = 2
-		} else {
-			o.Version = 3
-		}
+		o.Version = 3
 	}
 
 	z := parse.NewInput(r)
diff --git a/css/css_test.go b/css/css_test.go
index e8280c05a..2052972a8 100644
--- a/css/css_test.go
+++ b/css/css_test.go
@@ -442,7 +442,7 @@ func TestCSSInline(t *testing.T) {
 	}
 }
 
-func TestCSSKeepCSS2(t *testing.T) {
+func TestCSS2(t *testing.T) {
 	tests := []struct {
 		css      string
 		expected string
@@ -458,7 +458,7 @@ func TestCSSKeepCSS2(t *testing.T) {
 
 	m := minify.New()
 	params := map[string]string{"inline": "1"}
-	cssMinifier := &Minifier{KeepCSS2: true}
+	cssMinifier := &Minifier{Version: 2}
 	for _, tt := range tests {
 		t.Run(tt.css, func(t *testing.T) {
 			r := bytes.NewBufferString(tt.css)
diff --git a/svg/svg.go b/svg/svg.go
index a4befb6b8..4b8b5be17 100644
--- a/svg/svg.go
+++ b/svg/svg.go
@@ -32,7 +32,7 @@ type Minifier struct {
 	KeepComments bool
 	Precision    int // number of significant digits
 	newPrecision int // precision for new numbers
-	Inline       bool
+	inline       bool
 }
 
 // Minify minifies SVG data, it reads from r and writes to w.
@@ -50,8 +50,8 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, params map[stri
 	if o.newPrecision <= 0 || 15 < o.newPrecision {
 		o.newPrecision = 15 // minimum number of digits a double can represent exactly
 	}
-	if !o.Inline {
-		o.Inline = params != nil && params["inline"] == "1"
+	if !o.inline {
+		o.inline = params != nil && params["inline"] == "1"
 	}
 
 	// namespaces to keep
@@ -171,7 +171,7 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, params map[stri
 				val, _ = o.shortenDimension(val)
 			}
 			if attr == Xml_Space && bytes.Equal(val, []byte("preserve")) ||
-				tag == Svg && (o.Inline && attr == Xmlns ||
+				tag == Svg && (o.inline && attr == Xmlns ||
 					attr == Version && bytes.Equal(val, []byte("1.1")) ||
 					attr == X && bytes.Equal(val, zeroBytes) ||
 					attr == Y && bytes.Equal(val, zeroBytes) ||
diff --git a/svg/svg_test.go b/svg/svg_test.go
index 888f3addd..2f25d3c24 100644
--- a/svg/svg_test.go
+++ b/svg/svg_test.go
@@ -182,7 +182,7 @@ func TestSVGInline(t *testing.T) {
 	}
 
 	m := minify.New()
-	o := &Minifier{Inline: true}
+	o := &Minifier{inline: true}
 	for _, tt := range svgTests {
 		t.Run(tt.svg, func(t *testing.T) {
 			r := bytes.NewBufferString(tt.svg)