diff --git a/33128/r18/urn_3GPP_ns_li_3GPPIdentityExtensions.xsd b/33128/r18/urn_3GPP_ns_li_3GPPIdentityExtensions.xsd
index d79c3e1fb13f88e7a29544ec289b3ebde12d5569..52e3330eb9ccc6326c6b584abac1b46a4a23dda9 100644
--- a/33128/r18/urn_3GPP_ns_li_3GPPIdentityExtensions.xsd
+++ b/33128/r18/urn_3GPP_ns_li_3GPPIdentityExtensions.xsd
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-           xmlns="urn:3GPP:ns:li:3GPPIdentityExtensions:r18:v1"
+           xmlns="urn:3GPP:ns:li:3GPPIdentityExtensions:r18:v2"
            xmlns:x1="http://uri.etsi.org/03221/X1/2017/10"
            xmlns:common="http://uri.etsi.org/03280/common/2017/07"
            xmlns:liqr="urn:3GPP:ns:li:3GPPLIQueryExtensions:r18:v2"
-           targetNamespace="urn:3GPP:ns:li:3GPPIdentityExtensions:r18:v1"
+           targetNamespace="urn:3GPP:ns:li:3GPPIdentityExtensions:r18:v2"
            elementFormDefault="qualified">
 
   <xs:import namespace="http://uri.etsi.org/03221/X1/2017/10"/>
   <xs:import namespace="http://uri.etsi.org/03280/common/2017/07"/>
-  <xs:import namespace="urn:3GPP:ns:li:3GPPLIQueryExtensions:r18:v2"/>
+  <xs:import namespace="urn:3GPP:ns:li:3GPPLIQueryExtensions:r18:v3"/>
 
   <xs:complexType name="IdentityAssociationRequest">
     <xs:complexContent>
diff --git a/33128/r18/urn_3GPP_ns_li_3GPPLIQueryExtensions.xsd b/33128/r18/urn_3GPP_ns_li_3GPPLIQueryExtensions.xsd
index 7cea78b854b910644b13d202a0acb8510be38b7f..5844631637dc1816ff58875535ab564ab690616c 100644
--- a/33128/r18/urn_3GPP_ns_li_3GPPLIQueryExtensions.xsd
+++ b/33128/r18/urn_3GPP_ns_li_3GPPLIQueryExtensions.xsd
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-           xmlns="urn:3GPP:ns:li:3GPPLIQueryExtensions:r18:v2"
+           xmlns="urn:3GPP:ns:li:3GPPLIQueryExtensions:r18:v3"
            xmlns:x1="http://uri.etsi.org/03221/X1/2017/10"
            xmlns:common="http://uri.etsi.org/03280/common/2017/07"
            xmlns:etsi103120common="http://uri.etsi.org/03120/common/2016/02/Common"
-           targetNamespace="urn:3GPP:ns:li:3GPPLIQueryExtensions:r18:v2"
+           targetNamespace="urn:3GPP:ns:li:3GPPLIQueryExtensions:r18:v3"
            elementFormDefault="qualified">
 
   <xs:import namespace="http://uri.etsi.org/03221/X1/2017/10"/>
@@ -25,7 +25,7 @@
   <xs:complexType name="RequestDetails">
     <xs:sequence>
       <xs:element name="Type" type="DictionaryEntry"/>
-      <xs:element name="ObservedTime" type="common:QualifiedDateTime"/>
+      <xs:element name="ObservedTime" type="common:QualifiedDateTime" minOccurs="0"/>
       <xs:element name="RequestValues" type="RequestValues"/>
     </xs:sequence>
   </xs:complexType>