diff --git a/caskman.owl b/caskman.owl
index 58f2ce9..3f80231 100644
--- a/caskman.owl
+++ b/caskman.owl
@@ -9,7 +9,7 @@
      xmlns:CaSk="http://www.w3id.org/hsu-aut/cask#"
      xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
      xmlns:ISA88="http://www.hsu-ifa.de/ontologies/ISA-TR88#"
-     xmlns:OpcUa="http://www.hsu-ifa.de/ontologies/OpcUa#"
+     xmlns:OpcUa="http://www.w3id.org/hsu-aut/OpcUa#"
      xmlns:swrla="http://swrl.stanford.edu/ontologies/3.3/swrla.owl#"
      xmlns:DIN8580="http://www.hsu-ifa.de/ontologies/DIN8580#"
      xmlns:VDI2206="http://www.hsu-ifa.de/ontologies/VDI2206#"
@@ -17,9 +17,9 @@
      xmlns:VDI3682="http://www.hsu-ifa.de/ontologies/VDI3682#"
      xmlns:DINEN61360="http://www.hsu-ifa.de/ontologies/DINEN61360#">
     <owl:Ontology rdf:about="http://www.w3id.org/hsu-aut/caskman#">
-        <owl:versionIRI rdf:resource="http://www.w3id.org/hsu-aut/caskman/4.4.0#"/>
+        <owl:versionIRI rdf:resource="http://www.w3id.org/hsu-aut/caskman/4.5.0#"/>
         <owl:imports rdf:resource="https://raw.githubusercontent.com/hsu-aut/IndustrialStandard-ODP-DIN8580/v1.4.2/DIN8580.owl"/>
-        <owl:imports rdf:resource="https://raw.githubusercontent.com/hsu-aut/IndustrialStandard-ODP-OPC-UA/v1.4.2/OpcUa.owl"/>
+        <owl:imports rdf:resource="https://raw.githubusercontent.com/hsu-aut/IndustrialStandard-ODP-OPC-UA/v2.0.0/OpcUa.owl"/>
         <owl:imports rdf:resource="https://raw.githubusercontent.com/hsu-aut/IndustrialStandard-ODP-VDI2860/v1.4.3/VDI2860.owl"/>
         <owl:imports rdf:resource="https://raw.githubusercontent.com/hsu-aut/IndustrialStandard-ODP-WADL/v1.4.2/WADL.owl"/>
         <owl:imports rdf:resource="https://raw.githubusercontent.com/hsu-aut/cask/v2.4.0/cask.owl"/>