diff --git a/33128/r18/TS33128Payloads.asn b/33128/r18/TS33128Payloads.asn
index fef0fe4b3200a2cb5454ef45a4fe0b9fb883ec7e..077d9eeb09f5b84acec25fa97b4fe6ac079cecf3 100644
--- a/33128/r18/TS33128Payloads.asn
+++ b/33128/r18/TS33128Payloads.asn
@@ -618,7 +618,8 @@ NEFPDUSessionModification ::= SEQUENCE
     applicationID                [7] ApplicationID OPTIONAL,
     aFID                         [8] AFID OPTIONAL,
     rDSAction                    [9] RDSAction OPTIONAL,
-    serializationFormat          [10] SerializationFormat OPTIONAL
+    serializationFormat          [10] SerializationFormat OPTIONAL,
+    pDUSessionID                 [11] PDUSessionID OPTIONAL
 }
 
 -- See clause 7.7.2.1.4 for details of this structure
@@ -948,7 +949,8 @@ SCEFPDNConnectionUpdate ::= SEQUENCE
     applicationID                [7] ApplicationID OPTIONAL,
     sCSASID                      [8] SCSASID OPTIONAL,
     rDSAction                    [9] RDSAction OPTIONAL,
-    serializationFormat          [10] SerializationFormat OPTIONAL
+    serializationFormat          [10] SerializationFormat OPTIONAL,
+    ePSBearerID                  [11] EPSBearerID OPTIONAL
 }
 
 -- See clause 7.8.2.1.4 for details of this structure