diff --git a/diff.go b/diff.go
index 327d9c5..ee86ae4 100644
--- a/diff.go
+++ b/diff.go
@@ -103,22 +103,22 @@ func Diff(from, to *Input, opts ...Option) (string, error) {
 	switch {
 	case o.ignore != nil:
 		var err error
-		q := withUpdate(o.ignore)
-		fromObj, err = modifyValue(q, fromObj)
+		q := WithUpdate(o.ignore)
+		fromObj, err = ModifyValue(q, fromObj)
 		if err != nil {
 			return "", fmt.Errorf("modify(lhs): %v", err)
 		}
-		toObj, err = modifyValue(q, toObj)
+		toObj, err = ModifyValue(q, toObj)
 		if err != nil {
 			return "", fmt.Errorf("modify(rhs): %v", err)
 		}
 	case o.only != nil:
 		var err error
-		fromObj, err = modifyValue(o.only, fromObj)
+		fromObj, err = ModifyValue(o.only, fromObj)
 		if err != nil {
 			return "", fmt.Errorf("modify(lhs): %v", err)
 		}
-		toObj, err = modifyValue(o.only, toObj)
+		toObj, err = ModifyValue(o.only, toObj)
 		if err != nil {
 			return "", fmt.Errorf("modify(lhs): %v", err)
 		}
@@ -136,7 +136,7 @@ func Diff(from, to *Input, opts ...Option) (string, error) {
 	return fmt.Sprint(d), nil
 }
 
-func modifyValue(query *gojq.Query, x interface{}) (interface{}, error) {
+func ModifyValue(query *gojq.Query, x interface{}) (interface{}, error) {
 	iter := query.Run(x)
 	var ret interface{}
 	for {
@@ -163,7 +163,7 @@ func toJSON(x interface{}) (string, error) {
 	return b.String(), nil
 }
 
-func withUpdate(query *gojq.Query) *gojq.Query {
+func WithUpdate(query *gojq.Query) *gojq.Query {
 	var ret *gojq.Query
 	qs := splitIntoTerms(query)
 	for j := len(qs) - 1; j >= 0; j-- {
diff --git a/diff_test.go b/diff_test.go
index ed2df68..aadb7d4 100644
--- a/diff_test.go
+++ b/diff_test.go
@@ -64,7 +64,7 @@ func Test_withUpdate(t *testing.T) {
 	for _, c := range queries {
 		t.Run(c.query, func(t *testing.T) {
 			want := parseQuery(t, c.want)
-			got := withUpdate(parseQuery(t, c.query))
+			got := WithUpdate(parseQuery(t, c.query))
 			if diff := cmp.Diff(want, got); diff != "" {
 				t.Errorf("-want, +got:\n%s", diff)
 			}