diff --git a/config/resource-manager.hcl b/config/resource-manager.hcl
index 5b3590b51c3..dcc457b8c73 100644
--- a/config/resource-manager.hcl
+++ b/config/resource-manager.hcl
@@ -41,7 +41,7 @@ service "attestation" {
 }
 service "authorization" {
   name      = "Authorization"
-  available = ["2020-04-01-preview", "2020-10-01", "2022-04-01", "2022-05-01-preview"]
+  available = ["2018-01-01-preview", "2020-04-01-preview", "2020-10-01", "2022-04-01", "2022-05-01-preview"]
 }
 service "automanage" {
   name      = "AutoManage"
@@ -580,4 +580,4 @@ service "webpubsub" {
 service "workloads" {
   name      = "Workloads"
   available = ["2023-04-01"]
-}
\ No newline at end of file
+}