diff --git a/services/graphrbac/1.6/graphrbac/models.go b/services/graphrbac/1.6/graphrbac/models.go
index 4c4fc8a33781..b08b43e608cf 100644
--- a/services/graphrbac/1.6/graphrbac/models.go
+++ b/services/graphrbac/1.6/graphrbac/models.go
@@ -331,6 +331,10 @@ type Application struct {
 	Oauth2AllowImplicitFlow *bool `json:"oauth2AllowImplicitFlow,omitempty"`
 	// RequiredResourceAccess - Specifies resources that this application requires access to and the set of OAuth permission scopes and application roles that it needs under each of those resources. This pre-configuration of required resource access drives the consent experience.
 	RequiredResourceAccess *[]RequiredResourceAccess `json:"requiredResourceAccess,omitempty"`
+	// KeyCredentials - A collection of KeyCredential objects.
+	KeyCredentials *[]KeyCredential `json:"keyCredentials,omitempty"`
+	// PasswordCredentials - A collection of PasswordCredential objects
+	PasswordCredentials *[]PasswordCredential `json:"passwordCredentials,omitempty"`
 	// AdditionalProperties - Unmatched properties from the message are deserialized this collection
 	AdditionalProperties map[string]interface{} `json:""`
 	// ObjectID - The object ID.
@@ -375,6 +379,12 @@ func (a Application) MarshalJSON() ([]byte, error) {
 	if a.RequiredResourceAccess != nil {
 		objectMap["requiredResourceAccess"] = a.RequiredResourceAccess
 	}
+	if a.KeyCredentials != nil {
+		objectMap["keyCredentials"] = a.KeyCredentials
+	}
+	if a.PasswordCredentials != nil {
+		objectMap["passwordCredentials"] = a.PasswordCredentials
+	}
 	if a.ObjectID != nil {
 		objectMap["objectId"] = a.ObjectID
 	}
@@ -519,6 +529,24 @@ func (a *Application) UnmarshalJSON(body []byte) error {
 				}
 				a.RequiredResourceAccess = &requiredResourceAccess
 			}
+		case "keyCredentials":
+			if v != nil {
+				var keyCredentials []KeyCredential
+				err = json.Unmarshal(*v, &keyCredentials)
+				if err != nil {
+					return err
+				}
+				a.KeyCredentials = &keyCredentials
+			}
+		case "passwordCredentials":
+			if v != nil {
+				var passwordCredentials []PasswordCredential
+				err = json.Unmarshal(*v, &passwordCredentials)
+				if err != nil {
+					return err
+				}
+				a.PasswordCredentials = &passwordCredentials
+			}
 		default:
 			if v != nil {
 				var additionalProperties interface{}
@@ -2159,7 +2187,7 @@ type KeyCredential struct {
 	// Type - Type. Acceptable values are 'AsymmetricX509Cert' and 'Symmetric'.
 	Type *string `json:"type,omitempty"`
 	// CustomKeyIdentifier - Custom Key Identifier
-	CustomKeyIdentifier *[]byte `json:"customKeyIdentifier,omitempty"`
+	CustomKeyIdentifier *string `json:"customKeyIdentifier,omitempty"`
 }
 
 // MarshalJSON is the custom marshaler for KeyCredential.
@@ -2269,7 +2297,7 @@ func (kc *KeyCredential) UnmarshalJSON(body []byte) error {
 			}
 		case "customKeyIdentifier":
 			if v != nil {
-				var customKeyIdentifier []byte
+				var customKeyIdentifier string
 				err = json.Unmarshal(*v, &customKeyIdentifier)
 				if err != nil {
 					return err
@@ -2360,6 +2388,8 @@ type PasswordCredential struct {
 	KeyID *string `json:"keyId,omitempty"`
 	// Value - Key value.
 	Value *string `json:"value,omitempty"`
+	// CustomKeyIdentifier - Custom Key Identifier
+	CustomKeyIdentifier *[]byte `json:"customKeyIdentifier,omitempty"`
 }
 
 // MarshalJSON is the custom marshaler for PasswordCredential.
@@ -2377,6 +2407,9 @@ func (pc PasswordCredential) MarshalJSON() ([]byte, error) {
 	if pc.Value != nil {
 		objectMap["value"] = pc.Value
 	}
+	if pc.CustomKeyIdentifier != nil {
+		objectMap["customKeyIdentifier"] = pc.CustomKeyIdentifier
+	}
 	for k, v := range pc.AdditionalProperties {
 		objectMap[k] = v
 	}
@@ -2440,6 +2473,15 @@ func (pc *PasswordCredential) UnmarshalJSON(body []byte) error {
 				}
 				pc.Value = &value
 			}
+		case "customKeyIdentifier":
+			if v != nil {
+				var customKeyIdentifier []byte
+				err = json.Unmarshal(*v, &customKeyIdentifier)
+				if err != nil {
+					return err
+				}
+				pc.CustomKeyIdentifier = &customKeyIdentifier
+			}
 		}
 	}