diff --git a/ontology/uco/core/core.ttl b/ontology/uco/core/core.ttl
index 2764132d..3370d56a 100644
--- a/ontology/uco/core/core.ttl
+++ b/ontology/uco/core/core.ttl
@@ -380,12 +380,11 @@ core:UcoInherentCharacterizationThing
 
 core:UcoInherentCharacterizationThing-disjointWith-UcoObject-shape
 	a sh:NodeShape ;
-	sh:message "observable:UcoInherentCharacterizationThing and observable:UcoObject are disjoint classes.  Assigning both types to a single node will be an error in UCO 2.0.0."@en ;
+	sh:message "observable:UcoInherentCharacterizationThing and observable:UcoObject are disjoint classes."@en ;
 	sh:not [
 		a sh:NodeShape ;
 		sh:class core:UcoObject ;
 	] ;
-	sh:severity sh:Warning ;
 	sh:targetClass core:UcoInherentCharacterizationThing ;
 	.
 
diff --git a/ontology/uco/types/types.ttl b/ontology/uco/types/types.ttl
index 0b8ac9c7..d5b69b1a 100644
--- a/ontology/uco/types/types.ttl
+++ b/ontology/uco/types/types.ttl
@@ -197,12 +197,11 @@ types:Thread
 
 types:Thread-disjointWith-co-List-shape
 	a sh:NodeShape ;
-	sh:message "types:Thread and co:List are disjoint classes.  Assigning both types to a single node will be an error in UCO 2.0.0."@en ;
+	sh:message "types:Thread and co:List are disjoint classes."@en ;
 	sh:not [
 		a sh:NodeShape ;
 		sh:class co:List ;
 	] ;
-	sh:severity sh:Warning ;
 	sh:targetClass types:Thread ;
 	.
 
@@ -226,12 +225,11 @@ types:ThreadItem
 
 types:ThreadItem-disjointWith-co-ListItem-shape
 	a sh:NodeShape ;
-	sh:message "types:ThreadItem and co:ListItem are disjoint classes.  Assigning both types to a single node will be an error in UCO 2.0.0."@en ;
+	sh:message "types:ThreadItem and co:ListItem are disjoint classes."@en ;
 	sh:not [
 		a sh:NodeShape ;
 		sh:class co:ListItem ;
 	] ;
-	sh:severity sh:Warning ;
 	sh:targetClass types:ThreadItem ;
 	.
 
diff --git a/tests/examples/Makefile b/tests/examples/Makefile
index 6b36e63b..7d6cef44 100644
--- a/tests/examples/Makefile
+++ b/tests/examples/Makefile
@@ -27,7 +27,7 @@ all: \
   configuration_setting_XFAIL_validation.ttl \
   database_records_PASS_validation.ttl \
   database_records_XFAIL_validation.ttl \
-  disjointedness_PASS_validation.ttl \
+  disjointedness_XFAIL_validation.ttl \
   event_XFAIL_validation.ttl \
   file_url_PASS_validation.ttl \
   has_facet_inverse_functional_PASS_validation.ttl \
@@ -99,7 +99,7 @@ check: \
   configuration_setting_XFAIL_validation.ttl \
   database_records_PASS_validation.ttl \
   database_records_XFAIL_validation.ttl \
-  disjointedness_PASS_validation.ttl \
+  disjointedness_XFAIL_validation.ttl \
   event_XFAIL_validation.ttl \
   file_url_PASS_validation.ttl \
   has_facet_inverse_functional_PASS_validation.ttl \
diff --git a/tests/examples/disjointedness_PASS.json b/tests/examples/disjointedness_XFAIL.json
similarity index 72%
rename from tests/examples/disjointedness_PASS.json
rename to tests/examples/disjointedness_XFAIL.json
index 227775a6..4957c293 100644
--- a/tests/examples/disjointedness_PASS.json
+++ b/tests/examples/disjointedness_XFAIL.json
@@ -12,7 +12,7 @@
                 "observable:File",
                 "observable:FileFacet"
             ],
-            "rdfs:comment": "This node will trigger a violation in UCO 2.0.0 for designating itself a File and FileFacet, which are disjoint due to File being a (eventual) subclass of UcoObject, and FileFacet being a (eventual) subclass of UcoInherentCharacterizationThing."
+            "rdfs:comment": "This node will trigger a violation for designating itself a File and FileFacet, which are disjoint due to File being a (eventual) subclass of UcoObject, and FileFacet being a (eventual) subclass of UcoInherentCharacterizationThing."
         }
     ]
 }
diff --git a/tests/examples/test_validation.py b/tests/examples/test_validation.py
index 91807153..da928eb1 100644
--- a/tests/examples/test_validation.py
+++ b/tests/examples/test_validation.py
@@ -207,12 +207,12 @@ def test_database_records_XFAIL() -> None:
       }
     )
 
-def test_disjointedness_PASS() -> None:
+def test_disjointedness_XFAIL() -> None:
     confirm_validation_results(
-      "disjointedness_PASS_validation.ttl",
-      True,
+      "disjointedness_XFAIL_validation.ttl",
+      False,
       expected_focus_node_severities={
-        ("http://example.org/kb/File-33a25932-3a1a-4828-a90f-d31818b495ce", str(NS_SH.Warning)),
+        ("http://example.org/kb/File-33a25932-3a1a-4828-a90f-d31818b495ce", str(NS_SH.Violation)),
       }
     )