diff --git a/api/api.go b/api/api.go
index 03118787..39e9d282 100644
--- a/api/api.go
+++ b/api/api.go
@@ -7,7 +7,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/Azure/azure-sdk-for-go/services/authorization/mgmt/2020-10-01/authorization"
+	"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-09-01-preview/authorization"
 	"github.com/Azure/go-autorest/autorest"
 	"github.com/Azure/go-autorest/autorest/date"
 )
diff --git a/api/application_msgraph.go b/api/application_msgraph.go
index c26c78c9..a06fea37 100644
--- a/api/application_msgraph.go
+++ b/api/application_msgraph.go
@@ -10,7 +10,7 @@ import (
 	"net/url"
 	"time"
 
-	"github.com/Azure/azure-sdk-for-go/services/authorization/mgmt/2020-10-01/authorization"
+	"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-09-01-preview/authorization"
 	"github.com/Azure/go-autorest/autorest"
 	"github.com/Azure/go-autorest/autorest/azure"
 	"github.com/Azure/go-autorest/autorest/date"
diff --git a/client.go b/client.go
index ae43e315..3009e6a5 100644
--- a/client.go
+++ b/client.go
@@ -13,7 +13,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Azure/azure-sdk-for-go/services/authorization/mgmt/2020-10-01/authorization"
+	"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-09-01-preview/authorization"
 	"github.com/Azure/go-autorest/autorest"
 	"github.com/Azure/go-autorest/autorest/azure"
 	"github.com/Azure/go-autorest/autorest/to"
@@ -175,7 +175,7 @@ func (c *client) assignRoles(ctx context.Context, spID string, roles []*AzureRol
 			}
 			ra, err := c.provider.CreateRoleAssignment(ctx, role.Scope, assignmentIDs[i],
 				authorization.RoleAssignmentCreateParameters{
-					Properties: &authorization.RoleAssignmentProperties{
+					RoleAssignmentProperties: &authorization.RoleAssignmentProperties{
 						RoleDefinitionID: &role.RoleID,
 						PrincipalID:      &spID,
 					},
diff --git a/mock_provider_test.go b/mock_provider_test.go
index 3ec295f5..478b06a9 100644
--- a/mock_provider_test.go
+++ b/mock_provider_test.go
@@ -9,7 +9,7 @@ import (
 	reflect "reflect"
 	time "time"
 
-	authorization "github.com/Azure/azure-sdk-for-go/services/authorization/mgmt/2020-10-01/authorization"
+	authorization "github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-09-01-preview/authorization"
 	gomock "github.com/golang/mock/gomock"
 	api "github.com/hashicorp/vault-plugin-secrets-azure/api"
 )
diff --git a/path_roles.go b/path_roles.go
index 5cf791bb..edcc97da 100644
--- a/path_roles.go
+++ b/path_roles.go
@@ -10,7 +10,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Azure/azure-sdk-for-go/services/authorization/mgmt/2020-10-01/authorization"
+	"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-09-01-preview/authorization"
 	"github.com/Azure/go-autorest/autorest/to"
 	"github.com/hashicorp/vault-plugin-secrets-azure/api"
 	"github.com/hashicorp/vault/sdk/framework"
diff --git a/path_service_principal_test.go b/path_service_principal_test.go
index a432baa7..b743d3b4 100644
--- a/path_service_principal_test.go
+++ b/path_service_principal_test.go
@@ -777,7 +777,7 @@ func TestRoleAssignmentWALRollback(t *testing.T) {
 		roleDefs, err := provider.ListRoleDefinitions(context.Background(), fmt.Sprintf("subscriptions/%s", subscriptionID), "")
 		assertErrorIsNil(t, err)
 
-		defID := *ra.Properties.RoleDefinitionID
+		defID := *ra.RoleAssignmentPropertiesWithScope.RoleDefinitionID
 		found := false
 		for _, def := range roleDefs {
 			if *def.ID == defID && *def.RoleName == "Storage Blob Data Owner" {
@@ -992,7 +992,7 @@ func TestCredentialInteg_msgraph(t *testing.T) {
 		roleDefs, err := provider.ListRoleDefinitions(context.Background(), fmt.Sprintf("subscriptions/%s", subscriptionID), "")
 		assertErrorIsNil(t, err)
 
-		defID := *ra.Properties.RoleDefinitionID
+		defID := *ra.RoleAssignmentPropertiesWithScope.RoleDefinitionID
 		found := false
 		for _, def := range roleDefs {
 			if *def.ID == defID && *def.RoleName == "Storage Blob Data Owner" {
diff --git a/provider.go b/provider.go
index 56092e06..1ff3db2b 100644
--- a/provider.go
+++ b/provider.go
@@ -7,7 +7,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/Azure/azure-sdk-for-go/services/authorization/mgmt/2020-10-01/authorization"
+	"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-09-01-preview/authorization"
 	"github.com/Azure/go-autorest/autorest"
 	"github.com/Azure/go-autorest/autorest/azure/auth"
 	"github.com/hashicorp/vault-plugin-secrets-azure/api"
diff --git a/provider_mock_test.go b/provider_mock_test.go
index 35eb6423..ef5cc7ef 100644
--- a/provider_mock_test.go
+++ b/provider_mock_test.go
@@ -12,7 +12,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/Azure/azure-sdk-for-go/services/authorization/mgmt/2020-10-01/authorization"
+	"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-09-01-preview/authorization"
 	"github.com/Azure/go-autorest/autorest/date"
 	"github.com/Azure/go-autorest/autorest/to"
 	"github.com/hashicorp/vault-plugin-secrets-azure/api"