diff --git a/xos/tosca/custom_types/xos.m4 b/xos/tosca/custom_types/xos.m4
index d4f771b..4af9050 100644
--- a/xos/tosca/custom_types/xos.m4
+++ b/xos/tosca/custom_types/xos.m4
@@ -1065,6 +1065,12 @@
     tosca.relationships.TagsObject:
         derived_from: tosca.relationships.Root
 
+    tosca.relationships.MemberOfDevice:
+        derived_from: tosca.relationships.Root
+
+    tosca.relationships.UsesAgent:
+        derived_from: tosca.relationships.Root
+
     tosca.relationships.HasResource:
         derived_from: tosca.relationships.Root
 
diff --git a/xos/tosca/custom_types/xos.yaml b/xos/tosca/custom_types/xos.yaml
index 10518d7..aacc2a2 100644
--- a/xos/tosca/custom_types/xos.yaml
+++ b/xos/tosca/custom_types/xos.yaml
@@ -1874,6 +1874,12 @@
     tosca.relationships.TagsObject:
         derived_from: tosca.relationships.Root
 
+    tosca.relationships.MemberOfDevice:
+        derived_from: tosca.relationships.Root
+
+    tosca.relationships.UsesAgent:
+        derived_from: tosca.relationships.Root
+
     tosca.relationships.HasResource:
         derived_from: tosca.relationships.Root