diff --git a/dependencies/CASE-develop-2.0.0 b/dependencies/CASE-develop-2.0.0
index 76784bc3..ba810bc7 160000
--- a/dependencies/CASE-develop-2.0.0
+++ b/dependencies/CASE-develop-2.0.0
@@ -1 +1 @@
-Subproject commit 76784bc39dc825bba0109a36fa46fe721bf8f43b
+Subproject commit ba810bc79a8f466a0a75ccab8121eb299b6a896f
diff --git a/dependencies/CASE-unstable b/dependencies/CASE-unstable
index 87c8fd3f..50a7579f 160000
--- a/dependencies/CASE-unstable
+++ b/dependencies/CASE-unstable
@@ -1 +1 @@
-Subproject commit 87c8fd3f37f06be8a908177619f70e30e24d536f
+Subproject commit 50a7579f96e3758afb82c93f2a36e23f404ce396
diff --git a/dependencies/CASE-unstable-2.0.0 b/dependencies/CASE-unstable-2.0.0
index 642299be..97bcb555 160000
--- a/dependencies/CASE-unstable-2.0.0
+++ b/dependencies/CASE-unstable-2.0.0
@@ -1 +1 @@
-Subproject commit 642299bee9887342ee3eaaf15e6a0734d0a94889
+Subproject commit 97bcb5552bc88029d1e59e0c0c0c83dc5d99fc8b
diff --git a/ontology/CASE-develop-2.0.0.ttl b/ontology/CASE-develop-2.0.0.ttl
index fded82ba..dc4d078f 100644
--- a/ontology/CASE-develop-2.0.0.ttl
+++ b/ontology/CASE-develop-2.0.0.ttl
@@ -887,12 +887,12 @@ uco-owl:Disjointedness-C-DT-shape
 	sh:sparql [
 		a sh:SPARQLConstraint ;
 		rdfs:seeAlso <https://www.w3.org/TR/2012/REC-owl2-syntax-20121211/#Typing_Constraints_of_OWL_2_DL> ;
-		sh:message "An IRI may not be a member of both an owl:Class and owl:Datatype."@en ;
+		sh:message "An IRI may not be a member of both an owl:Class and rdfs:Datatype."@en ;
 		sh:select """
 			PREFIX owl: <http://www.w3.org/2002/07/owl#>
 			SELECT $this
 			WHERE {
-				$this a owl:Datatype ;
+				$this a rdfs:Datatype ;
 			}
 		""" ;
 	] ;
@@ -2171,7 +2171,6 @@ core:ContextualCompilation
 	rdfs:comment "A contextual compilation is a grouping of things sharing some context (e.g., a set of network connections observed on a given day, all accounts associated with a given person)."@en ;
 	sh:property [
 		sh:class core:UcoObject ;
-		sh:minCount "1"^^xsd:integer ;
 		sh:nodeKind sh:IRI ;
 		sh:path core:object ;
 	] ;
@@ -8547,6 +8546,16 @@ observable:ObservableRelationship
 		;
 	rdfs:label "ObservableRelationship"@en ;
 	rdfs:comment "An observable relationship is a grouping of characteristics unique to an assertion of an association between two observable objects."@en ;
+	sh:property
+		[
+			sh:class observable:Observable ;
+			sh:path core:source ;
+		] ,
+		[
+			sh:class observable:Observable ;
+			sh:path core:target ;
+		]
+		;
 	sh:targetClass observable:ObservableRelationship ;
 	.