diff --git a/Dockerfile b/Dockerfile
index be3f8bb..7774578 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM python:3.6-alpine
 
 RUN apk add --update --no-cache libpq postgresql-dev libffi libffi-dev bash curl libstdc++ nodejs
-RUN apk add --update --no-cache --virtual=build-dependencies build-base 
+RUN apk add --update --no-cache --virtual=build-dependencies build-base
 RUN apk --repository http://dl-3.alpinelinux.org/alpine/edge/testing/ --update add leveldb leveldb-dev
 
 WORKDIR /app
@@ -9,7 +9,7 @@ ADD requirements.txt .
 RUN pip install -r requirements.txt
 
 # Install os-types, used in the loading process for fiscal modelling the datapackage
-RUN npm install -g os-types
+RUN npm install -g os-types@1.15.1-alpha.1
 
 RUN apk del build-dependencies
 RUN rm -rf /var/cache/apk/*
diff --git a/conductor/blueprints/package/controllers.py b/conductor/blueprints/package/controllers.py
index 27415ad..879f2f2 100644
--- a/conductor/blueprints/package/controllers.py
+++ b/conductor/blueprints/package/controllers.py
@@ -55,12 +55,12 @@ def prepare_field(field, slugs):
     ret = {
         'header': slug,
         'aliases': aliases,
-        'osType': field['osType'],
+        'columnType': field['columnType'],
     }
     if 'title' in field:
         ret['title'] = field['title']
     ret['options'] = copy_except(field,
-                                 ('name', 'title', 'osType', 'type',
+                                 ('name', 'title', 'columnType', 'type',
                                   'slug', 'conceptType', 'format'))
     return ret
 
@@ -138,7 +138,7 @@ def upload(datapackage, token, cache_get, cache_set):
                     prepare_field(f, slugs)
                     for f in
                     r.descriptor['schema']['fields']
-                    if 'osType' in f
+                    if 'columnType' in f
                 ]
             }
             package_id = \
diff --git a/tests/module/blueprints/package/test_controllers.py b/tests/module/blueprints/package/test_controllers.py
index 6182da2..bd36633 100644
--- a/tests/module/blueprints/package/test_controllers.py
+++ b/tests/module/blueprints/package/test_controllers.py
@@ -1,4 +1,3 @@
-from collections import namedtuple
 import unittest
 
 import time
@@ -16,6 +15,8 @@
 
 module = import_module('conductor.blueprints.package.controllers')
 dpp_module = import_module('datapackage.helpers')
+
+
 class Response:
     def __init__(self, status_code, _json):
         self.status_code = status_code
@@ -28,6 +29,7 @@ def raise_for_status(self):
         if self.status_code != 200:
             raise AssertionError('HTTP {}'.format(self.status_code))
 
+
 datapackage = {
     'name': 'my-dataset',
     'resources': [
@@ -36,7 +38,9 @@ def raise_for_status(self):
             'path': 'data.csv',
             'schema': {
                 'fields': [
-                    {'name': 'year', 'type': 'integer', 'osType': 'date:fiscal-year'}
+                    {'name': 'year',
+                     'type': 'integer',
+                     'columnType': 'date:fiscal-year'}
                 ]
             }
         }
@@ -47,6 +51,7 @@ def raise_for_status(self):
 callback = 'http://conductor/callback'
 token = None
 
+
 def cache_get(key):
     global _cache
     return _cache.get(key)
@@ -66,7 +71,8 @@ def setUp(self):
         global token
 
         self.private_key = PRIVATE_KEY
-        token = jwt.encode({'userid': 'owner'}, PRIVATE_KEY, algorithm='RS256').decode('ascii')
+        token = jwt.encode({'userid': 'owner'},
+                           PRIVATE_KEY, algorithm='RS256').decode('ascii')
 
         # Cleanup
         self.addCleanup(patch.stopall)
@@ -94,7 +100,8 @@ def assertResponse(self, ret, status=None, progress=None, error=None):
     def test___load___good_request(self):
         api_load = module.upload
         self.requests.get = Mock(return_value=Response(200, datapackage))
-        self.assertResponse(api_load('http://bla', token, cache_get, cache_set), 'queued', 0)
+        self.assertResponse(api_load('http://bla', token,
+                                     cache_get, cache_set), 'queued', 0)
 
     # def test___load___bad_request(self):
     #     api_load = module.upload
@@ -109,7 +116,10 @@ def test___load___good_request(self):
     def test___callback___server_down(self):
         api_load = module.upload
         self.requests.get = Mock(return_value=Response(499, datapackage))
-        self.assertResponse(api_load('http://bla', token, cache_get, cache_set), 'fail', error='HTTP 499')
+        self.assertResponse(api_load('http://bla',
+                                     token,
+                                     cache_get,
+                                     cache_set), 'fail', error='HTTP 499')
 
     def test___poll___good_request(self):
         api_load = module.upload