diff --git a/Dockerfile b/Dockerfile
index 6d30cda..9bef324 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,8 @@
 # docker build -t xosproject/xos-tosca:candidate .
 
 # xosproject/xos-tosca
-FROM xosproject/xos-client:2.1.32
+
+FROM xosproject/xos-client:2.2.11
 
 # Set environment variables
 ENV CODE_SOURCE .
diff --git a/VERSION b/VERSION
index 18efdb9..512a1fa 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.1.8
+1.1.9
diff --git a/src/tosca/xtarget/tosca.xtarget b/src/tosca/xtarget/tosca.xtarget
index f0eb78b..19aeb60 100644
--- a/src/tosca/xtarget/tosca.xtarget
+++ b/src/tosca/xtarget/tosca.xtarget
@@ -12,7 +12,7 @@
     #     properties:
     #       must-exist: true # optional to reference models created in other recipes
 {%- for f in (m.fields + xproto_base_fields(m, proto.message_table)) | sort(attribute='name') %}
-{%- if not f.link and xproto_tosca_required(f.options.null, f.options.blank, f.options.default) %}
+{%- if not f.link and xproto_tosca_required(f.options.null, f.options.blank, f.options.default, f.options.modifier) %}
     #       {{ f.name }}: <value>
 {%- endif -%}
 {%- endfor %}
@@ -34,7 +34,7 @@
             {%- if not f.link -%}
             {{ f.name }}:
                 type: {{ xproto_tosca_field_type(f.type) }}
-                required: {{ xproto_tosca_required(f.options.null, f.options.blank, f.options.default) }}
+                required: {{ xproto_tosca_required(f.options.null, f.options.blank, f.options.default, f.options.modifier) }}
                 description: {{ f.options.help_text }}
             {% endif %}
             {%- endfor %}
diff --git a/test/test_tosca_parser_e2e.py b/test/test_tosca_parser_e2e.py
index 124e160..8a1b7e8 100644
--- a/test/test_tosca_parser_e2e.py
+++ b/test/test_tosca_parser_e2e.py
@@ -35,7 +35,7 @@
 class FakeSite:
     objects = FakeObj
 
-class FakeInstance:
+class FakePrivilege:
     objects = FakeObj
 
 class FakeUser:
@@ -52,7 +52,7 @@
     'XOSGuiExtension': FakeGuiExt,
     'Site': FakeSite,
     'User': FakeUser,
-    'Instance': FakeInstance,
+    'Privilege': FakePrivilege,
     'Node': FakeNode
 }
 
@@ -238,7 +238,7 @@
         self.assertEqual(e.exception.message.message, "[XOS-TOSCA] Model of class Site and properties {'name': 'Open Networking Lab'} has property 'must-exist' but cannot be found")
 
     @patch.dict(RESOURCES, mock_resources, clear=True)
-    @patch.object(FakeInstance.objects, 'filter', MagicMock(return_value=[FakeModel]))
+    @patch.object(FakePrivilege.objects, 'filter', MagicMock(return_value=[FakeModel]))
     @patch.object(FakeModel, 'save')
     def test_number_param(self, mock_save):
         """
@@ -250,17 +250,16 @@
                 description: Create a new site with one user
 
                 imports:
-                   - custom_types/instance.yaml
+                   - custom_types/privilege.yaml
 
                 topology_template:
                   node_templates:
 
-                    # Site
-                    instance#test_instance:
-                      type: tosca.nodes.Instance
+                    privilege#test_privilege:
+                      type: tosca.nodes.Privilege
                       properties:
-                        name: test_instance
-                        numberCores: 10
+                        permission: whatever
+                        accessor_id: 3
                 """
         parser = TOSCA_Parser(recipe, USERNAME, PASSWORD)
         parser.execute()
@@ -269,6 +268,6 @@
         mock_save.assert_called()
 
         # check that the model was saved with the expected values
-        saved_model = parser.saved_model_by_name['instance#test_instance']
-        self.assertEqual(saved_model.name, 'test_instance')
-        self.assertEqual(saved_model.numberCores, 10)
+        saved_model = parser.saved_model_by_name['privilege#test_privilege']
+        self.assertEqual(saved_model.permission, 'whatever')
+        self.assertEqual(saved_model.accessor_id, 3)