diff --git a/OneM2M_Testcases_CSE.ttcn b/OneM2M_Testcases_CSE.ttcn
index 967fa11b04d7e89812003b9a5ab760294338705a..6f3fca9f314b6e54ff3b3ed66fce99dab22773df 100644
--- a/OneM2M_Testcases_CSE.ttcn
+++ b/OneM2M_Testcases_CSE.ttcn
@@ -14998,7 +14998,7 @@ module OneM2M_Testcases_CSE {
 					
 					testcase TC_CSE_DMR_UPD_016_ACP_ET() runs on Tester system CseSystem {
 						var AeSimu v_ae1 := AeSimu.create("AE1") alive;
-						var Timestamp v_expirationTime := "20001231T012345";
+						var Timestamp v_expirationTime := "21001231T012345";
 						var template RequestPrimitive v_updateRequest := m_updateAcpBase;
 						var ResponsePrimitive v_responsePrimitive;
 						var PrimitiveContent v_primitiveContentRetrieveResource;