diff --git a/requirements.txt b/requirements.txt
index 87bac65..865221d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,14 +1,14 @@
 certifi==2017.4.17
 chardet==3.0.3
-Django==1.10.1
+Django==1.11.15
 git+https://github.com/djangonauts/django-hstore@61427e474cb2f4be8fdfce225d78a5330bc77eb0#egg=django-hstore
-git+https://github.com/informatic/django-tree@993cec827ed989d3c162698a739da95b9227604b#egg=django-tree
+git+https://github.com/d42/django-tree@687c01c02d91cada9ca1912e34e482da9e73e27a#egg=django-tree
 django-appconf==1.0.2
 django-auth-ldap==1.2.12
-Django-Select2==5.8.10
+Django-Select2==6.3.1
 djangorestframework==3.5.4
 Pillow==3.3.1
-psycopg2==2.6.2
+psycopg2==2.7.5
 djangorestframework-hstore==1.3
 pyldap==2.4.28
 requests==2.16.5
diff --git a/storage/admin.py b/storage/admin.py
index 8fb7ab5..6755f32 100644
--- a/storage/admin.py
+++ b/storage/admin.py
@@ -14,7 +14,7 @@ class ItemForm(forms.ModelForm):
         model = Item
         exclude = []
         widgets = {
-            'parent': ItemSelectWidget,
+            'parent': ItemSelectWidget(model=Item),
             'categories': Select2MultipleWidget,
             'props': PropsSelectWidget
             }
diff --git a/storage/views.py b/storage/views.py
index b5ebec6..b8e2a93 100644
--- a/storage/views.py
+++ b/storage/views.py
@@ -125,8 +125,7 @@ class PropSelectView(AutoResponseView):
                 select skeys(props) as e, count(skeys(props)) as e_count
                 from storage_item group by e order by e_count desc) as xD
             where e like %s limit 10;""", ['%' + self.term + '%'])
-            props = c.fetchall()
-
+            props = [e[0] for e in c.fetchall()]
         return JsonResponse({
             'results': [
                 {
diff --git a/storage/widgets.py b/storage/widgets.py
index 8c254d6..82c1906 100644
--- a/storage/widgets.py
+++ b/storage/widgets.py
@@ -36,13 +36,13 @@ class PropsSelectWidget(DictionaryFieldWidget):
         # get default HTML from AdminTextareaWidget
         html = AdminTextareaWidget.render(self, name, value, attrs)
         # prepare template context
-        template_context = Context({
+        template_context = {
             'field_name': name,
             'STATIC_URL': settings.STATIC_URL,
             'use_svg': parse_version(get_version()) >= parse_version('1.9'),  # use svg icons if django >= 1.9
             'ajax_url': reverse('prop-complete'),
-            'w': w.build_attrs()
-        })
+            'w': w.build_attrs(base_attrs=w.attrs)
+        }
         # get template object
         template = get_template('hstore_%s_widget.html' % self.admin_style)
         # render additional html