diff --git a/ontology/saref4inma.ttl b/ontology/saref4inma.ttl
index 68ebae463eae0c025d4252ef17623f7b55e0988b..7c963d4659cd3db3dd803032977e67fa803331db 100644
--- a/ontology/saref4inma.ttl
+++ b/ontology/saref4inma.ttl
@@ -296,12 +296,6 @@ s4inma:hasUUIDValue rdf:type owl:DatatypeProperty ;
                     rdfs:label "has UUID value"@en .
 
 
-###  https://saref.etsi.org/saref4inma/hasVersion
-s4inma:hasVersion rdf:type owl:DatatypeProperty ;
-                  rdfs:comment "An item has a certain revision or version number, whereas a higher number indicates a newer version." ;
-                  rdfs:label "has version"@en .
-
-
 #################################################################
 #    Classes
 #################################################################
@@ -496,7 +490,7 @@ s4inma:ItemCategory rdf:type owl:Class ;
                                       owl:onDataRange xsd:string
                                     ] ,
                                     [ rdf:type owl:Restriction ;
-                                      owl:onProperty s4inma:hasVersion ;
+                                      owl:onProperty saref:hasVersion ;
                                       owl:maxQualifiedCardinality "1"^^xsd:nonNegativeInteger ;
                                       owl:onDataRange xsd:string
                                     ] ;