diff --git a/monastic-life.owl b/monastic-life.owl
index 492ce31..9986a7f 100644
--- a/monastic-life.owl
+++ b/monastic-life.owl
@@ -8,8 +8,8 @@
      xmlns:core="https://purl.org/nampi/owl/core#"
      xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
     <owl:Ontology rdf:about="https://purl.org/nampi/owl/monastic-life">
-        <owl:versionIRI rdf:resource="https://purl.org/nampi/owl/monastic-life/0.0.1"/>
-        <owl:imports rdf:resource="https://purl.org/nampi/owl/core/0.0.5"/>
+        <owl:versionIRI rdf:resource="https://purl.org/nampi/owl/monastic-life/0.0.2"/>
+        <owl:imports rdf:resource="https://purl.org/nampi/owl/core/0.0.6"/>
     </owl:Ontology>
     
 
@@ -50,7 +50,7 @@
     <!-- https://purl.org/nampi/owl/monastic-life#has_page_number -->
 
     <owl:DatatypeProperty rdf:about="https://purl.org/nampi/owl/monastic-life#has_page_number">
-        <rdfs:subPropertyOf rdf:resource="https://purl.org/nampi/owl/core#has_xsd_string"/>
+        <rdfs:subPropertyOf rdf:resource="https://purl.org/nampi/owl/core#has_value"/>
         <rdfs:domain rdf:resource="https://purl.org/nampi/owl/monastic-life#page"/>
         <rdfs:label xml:lang="en">has page number</rdfs:label>
     </owl:DatatypeProperty>