diff --git a/internal/keystore/azure/client.go b/internal/keystore/azure/client.go
index 91fde516..0d6f3073 100644
--- a/internal/keystore/azure/client.go
+++ b/internal/keystore/azure/client.go
@@ -56,7 +56,7 @@ func (c *client) CreateSecret(ctx context.Context, name, value string) (status,
 			Value: &value,
 		}, &azsecrets.SetSecretOptions{})
 		if err != nil {
-			azResp, ok := TransportErrToResponseError(err)
+			azResp, ok := transportErrToResponseError(err)
 			if !ok {
 				return status{}, err
 			}
@@ -137,7 +137,7 @@ func (c *client) GetSecret(ctx context.Context, name, version string) (string, s
 			return "", status{}, err
 		}
 		if err != nil {
-			azResp, ok := TransportErrToResponseError(err)
+			azResp, ok := transportErrToResponseError(err)
 			if !ok {
 				return "", status{}, err
 			}
@@ -268,7 +268,7 @@ func (c *client) DeleteSecret(ctx context.Context, name string) (status, error)
 	if c.azsecretsClient != nil {
 		_, err := c.azsecretsClient.DeleteSecret(ctx, name, &azsecrets.DeleteSecretOptions{})
 		if err != nil {
-			azResp, ok := TransportErrToResponseError(err)
+			azResp, ok := transportErrToResponseError(err)
 			if !ok {
 				return status{}, err
 			}
@@ -323,7 +323,7 @@ func (c *client) PurgeSecret(ctx context.Context, name string) (status, error) {
 	if c.azsecretsClient != nil {
 		_, err := c.azsecretsClient.PurgeDeletedSecret(ctx, name, &azsecrets.PurgeDeletedSecretOptions{})
 		if err != nil {
-			azResp, ok := TransportErrToResponseError(err)
+			azResp, ok := transportErrToResponseError(err)
 			if !ok {
 				return status{}, err
 			}
@@ -381,7 +381,7 @@ func (c *client) GetFirstVersion(ctx context.Context, name string) (string, stat
 		if pager.More() {
 			page, err := pager.NextPage(ctx)
 			if err != nil {
-				azResp, ok := TransportErrToResponseError(err)
+				azResp, ok := transportErrToResponseError(err)
 				if !ok {
 					return "", status{}, err
 				}
diff --git a/internal/keystore/azure/key-vault-error.go b/internal/keystore/azure/key-vault-error.go
index 9b43ecd8..862cc268 100644
--- a/internal/keystore/azure/key-vault-error.go
+++ b/internal/keystore/azure/key-vault-error.go
@@ -1,3 +1,7 @@
+// Copyright 2021 - MinIO, Inc. All rights reserved.
+// Use of this source code is governed by the AGPLv3
+// license that can be found in the LICENSE file.
+
 package azure
 
 import (
@@ -5,8 +9,7 @@ import (
 	"reflect"
 )
 
-// ResponseError is a wrapper around an error response from the Azure Key Vault service.
-type ResponseError struct {
+type responseError struct {
 	// ErrorCode is the error code returned by the resource provider if available.
 	ErrorCode string
 
@@ -19,8 +22,8 @@ type ResponseError struct {
 	errorResponse errorResponse
 }
 
-// TransportErrToResponseError converts a transport error to a ResponseError.
-func TransportErrToResponseError(terr error) (*ResponseError, bool) {
+// transportErrToResponseError converts a transport error to a ResponseError.
+func transportErrToResponseError(terr error) (*responseError, bool) {
 	if reflect.TypeOf(terr).String() == "*exported.ResponseError" {
 		tv := reflect.ValueOf(terr).Elem()
 		ErrorCode := tv.FieldByName("ErrorCode").String()
@@ -30,7 +33,7 @@ func TransportErrToResponseError(terr error) (*ResponseError, bool) {
 		if ok {
 			errorResponse, _ = parseErrorResponse(RawResponse)
 		}
-		return &ResponseError{
+		return &responseError{
 			ErrorCode:     ErrorCode,
 			StatusCode:    StatusCode,
 			RawResponse:   RawResponse,
diff --git a/internal/keystore/azure/key-vault.go b/internal/keystore/azure/key-vault.go
index a9d84902..7ad97168 100644
--- a/internal/keystore/azure/key-vault.go
+++ b/internal/keystore/azure/key-vault.go
@@ -321,7 +321,7 @@ func (s *Store) List(ctx context.Context, prefix string, n int) ([]string, strin
 				if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
 					return nil, "", err
 				}
-				azResp, ok := TransportErrToResponseError(err)
+				azResp, ok := transportErrToResponseError(err)
 				if !ok {
 					return nil, "", err
 				}
@@ -369,7 +369,7 @@ func (s *Store) Close() error { return nil }
 // ConnectWithCredentials tries to establish a connection to a Azure KeyVault
 // instance using Azure client credentials.
 func ConnectWithCredentials(_ context.Context, endpoint string, creds Credentials) (*Store, error) {
-	if os.Getenv("AZURE_CLIENT_API_VERSION") != "7.2" {
+	if os.Getenv("AZURE_CLIENT_API_VERSION") == "7.4" {
 		os.Setenv("AZURE_CLIENT_ID", creds.ClientID)
 		os.Setenv("AZURE_CLIENT_SECRET", creds.Secret)
 		os.Setenv("AZURE_TENANT_ID", creds.TenantID)
@@ -416,7 +416,7 @@ func ConnectWithCredentials(_ context.Context, endpoint string, creds Credential
 // ConnectWithIdentity tries to establish a connection to a Azure KeyVault
 // instance using an Azure managed identity.
 func ConnectWithIdentity(_ context.Context, endpoint string, msi ManagedIdentity) (*Store, error) {
-	if os.Getenv("AZURE_CLIENT_API_VERSION") != "7.2" {
+	if os.Getenv("AZURE_CLIENT_API_VERSION") == "7.4" {
 		cred, err := azidentity.NewManagedIdentityCredential(&azidentity.ManagedIdentityCredentialOptions{
 			ID: azidentity.ClientID(msi.ClientID),
 		})
diff --git a/internal/keystore/azure/key-vault_test.go b/internal/keystore/azure/key-vault_test.go
index 839b7572..01c35df1 100644
--- a/internal/keystore/azure/key-vault_test.go
+++ b/internal/keystore/azure/key-vault_test.go
@@ -1,3 +1,7 @@
+// Copyright 2021 - MinIO, Inc. All rights reserved.
+// Use of this source code is governed by the AGPLv3
+// license that can be found in the LICENSE file.
+
 package azure
 
 import (