diff --git a/odpf/guardian/v1beta1/guardian.proto b/odpf/guardian/v1beta1/guardian.proto
index 418b8a57..87204f17 100644
--- a/odpf/guardian/v1beta1/guardian.proto
+++ b/odpf/guardian/v1beta1/guardian.proto
@@ -448,7 +448,12 @@ message Policy {
         repeated AdditionalAppeal appeals = 2;
     }
     repeated Requirement requirements = 8;
-    google.protobuf.Struct iam = 9;
+
+    message IAM {
+        string provider = 1;
+        google.protobuf.Value config = 2;
+    }
+    IAM iam = 9;
 }
 
 message AppealOptions {