diff --git a/datamodel/low/model_builder.go b/datamodel/low/model_builder.go
index ac64bf9..e729f35 100644
--- a/datamodel/low/model_builder.go
+++ b/datamodel/low/model_builder.go
@@ -9,6 +9,7 @@ import (
 	"gopkg.in/yaml.v3"
 	"reflect"
 	"strconv"
+	"strings"
 	"sync"
 )
 
@@ -39,19 +40,7 @@ func BuildModel(node *yaml.Node, model interface{}) error {
 			continue // internal construct
 		}
 
-		// we need to find a matching field in the YAML, the cases may be off, so take no chances.
-		// TODO: investigate if a straight up to_lower will speed things up here, will it decrease or increase accuracy?
-		cases := []utils.Case{utils.CamelCase, utils.PascalCase, utils.ScreamingSnakeCase,
-			utils.SnakeCase, utils.KebabCase, utils.RegularCase}
-
-		var vn, kn *yaml.Node
-		for _, tryCase := range cases {
-			kn, vn = utils.FindKeyNodeTop(utils.ConvertCase(fName, tryCase), node.Content)
-			if vn != nil {
-				break
-			}
-		}
-
+		kn, vn := utils.FindKeyNodeTop(strings.ToLower(fName), node.Content)
 		if vn == nil {
 			// no point in going on.
 			continue
diff --git a/go.mod b/go.mod
index 71611ff..6addddc 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,6 @@ module github.com/pb33f/libopenapi
 go 1.18
 
 require (
-	github.com/iancoleman/strcase v0.2.0
 	github.com/stretchr/testify v1.8.0
 	github.com/vmware-labs/yaml-jsonpath v0.3.2
 	gopkg.in/yaml.v3 v3.0.1
diff --git a/go.sum b/go.sum
index 2d64ebc..cf27655 100644
--- a/go.sum
+++ b/go.sum
@@ -26,8 +26,6 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
-github.com/iancoleman/strcase v0.2.0 h1:05I4QRnGpI0m37iZQRuskXh+w77mr6Z41lwQzuHLwW0=
-github.com/iancoleman/strcase v0.2.0/go.mod h1:iwCmte+B7n89clKwxIoIXy/HfoL7AsD47ZCWhYzw7ho=
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
diff --git a/utils/utils.go b/utils/utils.go
index eb68aaa..c6fe555 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -3,7 +3,6 @@ package utils
 import (
 	"encoding/json"
 	"fmt"
-	"github.com/iancoleman/strcase"
 	"github.com/vmware-labs/yaml-jsonpath/pkg/yamlpath"
 	"gopkg.in/yaml.v3"
 	"regexp"
@@ -206,7 +205,7 @@ type KeyNodeSearch struct {
 func FindKeyNodeTop(key string, nodes []*yaml.Node) (keyNode *yaml.Node, valueNode *yaml.Node) {
 
 	for i, v := range nodes {
-		if key == v.Value {
+		if strings.ToLower(key) == strings.ToLower(v.Value) {
 			return v, nodes[i+1] // next node is what we need.
 		}
 	}
@@ -538,26 +537,6 @@ func RenderCodeSnippet(startNode *yaml.Node, specData []string, before, after in
 	return buf.String()
 }
 
-func ConvertCase(input string, convert Case) string {
-	if input == "" {
-		return ""
-	}
-	switch convert {
-	case PascalCase:
-		return strcase.ToCamel(input)
-	case CamelCase:
-		return strcase.ToLowerCamel(input)
-	case ScreamingKebabCase:
-		return strcase.ToScreamingKebab(input)
-	case ScreamingSnakeCase:
-		return strcase.ToScreamingSnake(input)
-	case SnakeCase:
-		return strcase.ToSnake(input)
-	default:
-		return input
-	}
-}
-
 func DetectCase(input string) Case {
 	trim := strings.TrimSpace(input)
 	if trim == "" {
diff --git a/utils/utils_test.go b/utils/utils_test.go
index c93cf25..03f869c 100644
--- a/utils/utils_test.go
+++ b/utils/utils_test.go
@@ -601,24 +601,6 @@ func TestDetectCase(t *testing.T) {
 	assert.Equal(t, RegularCase, DetectCase("kebab-TimeIn_london-TOWN"))
 }
 
-func TestConvertCase(t *testing.T) {
-	str1 := "chicken-nuggets-chicken-soup"
-	assert.Equal(t, "chickenNuggetsChickenSoup", ConvertCase(str1, CamelCase))
-	assert.Equal(t, "ChickenNuggetsChickenSoup", ConvertCase(str1, PascalCase))
-	assert.Equal(t, "chicken_nuggets_chicken_soup", ConvertCase(str1, SnakeCase))
-	assert.Equal(t, str1, ConvertCase(str1, KebabCase))
-	assert.Equal(t, "CHICKEN-NUGGETS-CHICKEN-SOUP", ConvertCase(str1, ScreamingKebabCase))
-	assert.Equal(t, "CHICKEN_NUGGETS_CHICKEN_SOUP", ConvertCase(str1, ScreamingSnakeCase))
-}
-
-func TestConvertCase_NoInput(t *testing.T) {
-	assert.Empty(t, ConvertCase("", ScreamingKebabCase))
-}
-
-func TestDetectCase_NoInput(t *testing.T) {
-	assert.Equal(t, UnknownCase, DetectCase(""))
-}
-
 func TestIsNodeRefValue(t *testing.T) {
 
 	f := &yaml.Node{