diff --git a/.travis.yml b/.travis.yml
index a07481e..ec22031 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ python:
 install:
   - mkdir -p buildout-cache/{eggs,downloads}
   - python bootstrap.py -c travis.cfg -d
-  - bin/buildout -Nc travis.cfg
+  - bin/buildout -c travis.cfg -N -q -t 3
 script:
   - bin/test
 notifications:
diff --git a/base.cfg b/base.cfg
index 6f567bc..61434c0 100644
--- a/base.cfg
+++ b/base.cfg
@@ -1,29 +1,11 @@
 [buildout]
-plone-version = 4.2.5
 package-name = collective.contact.core
 package-extras = [test]
-
 extends =
-    https://raw.github.com/collective/buildout.plonetest/master/plone-4.2.x.cfg
-    checkouts.cfg
+    https://raw.github.com/collective/buildout.plonetest/master/test-4.3.x.cfg
     sources.cfg
+    checkouts.cfg
     versions.cfg
-
 extensions =
     mr.developer
-
-develop = .
-
-parts +=
-    test
-
-eggs +=
-	Pillow
-	ipdb
-
-[test]
-recipe = zc.recipe.testrunner
-eggs =
-    ${buildout:eggs}
-    ${buildout:package-name} ${buildout:package-extras}
-defaults = ['-s', '${buildout:package-name}', '--auto-color', '--auto-progress']
+show-picked-versions = true
diff --git a/bootstrap.py b/bootstrap.py
index 5f2cb08..7647cbb 100644
--- a/bootstrap.py
+++ b/bootstrap.py
@@ -18,13 +18,13 @@ The script accepts buildout command-line options, so you can
 use the -c option to specify an alternate configuration file.
 """
 
-import os, shutil, sys, tempfile, textwrap, urllib, urllib2, subprocess
+import os, shutil, sys, tempfile, urllib, urllib2, subprocess
 from optparse import OptionParser
 
 if sys.platform == 'win32':
     def quote(c):
         if ' ' in c:
-            return '"%s"' % c # work around spawn lamosity on windows
+            return '"%s"' % c  # work around spawn lamosity on windows
         else:
             return c
 else:
@@ -57,13 +57,13 @@ if not has_broken_dash_S and 'site' in sys.modules:
 # out any namespace packages from site-packages that might have been
 # loaded by .pth files.
 clean_path = sys.path[:]
-import site
+import site  # imported because of its side effects
 sys.path[:] = clean_path
 for k, v in sys.modules.items():
     if k in ('setuptools', 'pkg_resources') or (
         hasattr(v, '__path__') and
-        len(v.__path__)==1 and
-        not os.path.exists(os.path.join(v.__path__[0],'__init__.py'))):
+        len(v.__path__) == 1 and
+        not os.path.exists(os.path.join(v.__path__[0], '__init__.py'))):
         # This is a namespace package.  Remove it.
         sys.modules.pop(k)
 
@@ -72,10 +72,11 @@ is_jython = sys.platform.startswith('java')
 setuptools_source = 'http://peak.telecommunity.com/dist/ez_setup.py'
 distribute_source = 'http://python-distribute.org/distribute_setup.py'
 
+
 # parsing arguments
 def normalize_to_url(option, opt_str, value, parser):
     if value:
-        if '://' not in value: # It doesn't smell like a URL.
+        if '://' not in value:  # It doesn't smell like a URL.
             value = 'file://%s' % (
                 urllib.pathname2url(
                     os.path.abspath(os.path.expanduser(value))),)
@@ -110,7 +111,7 @@ parser.add_option("--setup-source", action="callback", dest="setup_source",
                   help=("Specify a URL or file location for the setup file. "
                         "If you use Setuptools, this will default to " +
                         setuptools_source + "; if you use Distribute, this "
-                        "will default to " + distribute_source +"."))
+                        "will default to " + distribute_source + "."))
 parser.add_option("--download-base", action="callback", dest="download_base",
                   callback=normalize_to_url, nargs=1, type="string",
                   help=("Specify a URL or directory for downloading "
@@ -156,7 +157,7 @@ args.append('bootstrap')
 
 try:
     import pkg_resources
-    import setuptools # A flag.  Sometimes pkg_resources is installed alone.
+    import setuptools  # A flag.  Sometimes pkg_resources is installed alone.
     if not hasattr(pkg_resources, '_distribute'):
         raise ImportError
 except ImportError:
@@ -211,6 +212,7 @@ if version is None and not options.accept_buildout_test_releases:
     # Figure out the most recent final version of zc.buildout.
     import setuptools.package_index
     _final_parts = '*final-', '*final'
+
     def _final_version(parsed_version):
         for part in parsed_version:
             if (part[:1] == '*') and (part not in _final_parts):
@@ -242,7 +244,7 @@ cmd.append(requirement)
 if is_jython:
     import subprocess
     exitcode = subprocess.Popen(cmd, env=env).wait()
-else: # Windows prefers this, apparently; otherwise we would prefer subprocess
+else:  # Windows prefers this, apparently; otherwise we would prefer subprocess
     exitcode = os.spawnle(*([os.P_WAIT, sys.executable] + cmd + [env]))
 if exitcode != 0:
     sys.stdout.flush()
@@ -256,5 +258,5 @@ ws.add_entry(eggs_dir)
 ws.require(requirement)
 import zc.buildout.buildout
 zc.buildout.buildout.main(args)
-if not options.eggs: # clean up temporary egg directory
+if not options.eggs:  # clean up temporary egg directory
     shutil.rmtree(eggs_dir)
diff --git a/buildout.cfg b/buildout.cfg
index daf3f16..dc3a0ac 100644
--- a/buildout.cfg
+++ b/buildout.cfg
@@ -1,11 +1,10 @@
 [buildout]
 extends =
     base.cfg
-
 parts +=
     omelette
-
-show-picked-versions = true
+eggs +=
+    ipdb
 
 [omelette]
 recipe = collective.recipe.omelette
diff --git a/checkouts.cfg b/checkouts.cfg
index a406679..f44e979 100644
--- a/checkouts.cfg
+++ b/checkouts.cfg
@@ -1,12 +1,7 @@
 [buildout]
 extends =
-    https://raw.github.com/plone/buildout.coredev/4.2/sources.cfg
-    https://raw.github.com/plone/buildout.dexterity/master/sources.cfg
+    https://raw.github.com/plone/buildout.coredev/4.3/sources.cfg
 always-checkout = force
 auto-checkout +=
-    plone.app.dexterity
-    plone.dexterity
     plone.formwidget.masterselect
     collective.contact.widget
-    z3c.form
-    plone.app.z3cform
diff --git a/sources.cfg b/sources.cfg
index d6b0618..d1e87d4 100644
--- a/sources.cfg
+++ b/sources.cfg
@@ -1,10 +1,7 @@
+[buildout]
+extends = https://raw.github.com/plone/buildout.coredev/4.3/sources.cfg
+
 [remotes]
-collective = git://github.com/collective
-collective_push = git@github.com:collective
-zopefoundation = git://github.com/zopefoundation
-zopefoundation_push = git@github.com:zopefoundation
-plone = git://github.com/plone
-plone_push = git@github.com:plone
 tdesvenain = git://github.com/tdesvenain
 tdesvenain_push = git@github.com:tdesvenain
 vincentfretin = git://github.com/vincentfretin
@@ -15,9 +12,6 @@ entrouvert = git://repos.entrouvert.org
 entrouvert_push = git+ssh://git@repos.entrouvert.org
 
 [sources]
-plone.act = git ${remotes:plone}/plone.act.git pushurl=${remotes:plone_push}/plone.act.git
-plone.app.z3cform = git ${remotes:plone}/plone.app.z3cform.git pushurl=${remotes:plone_push}/plone.app.z3cform.git
 collective.contact.core = git ${remotes:collective}/collective.contact.core.git pushurl=${remotes:collective_push}/collective.contact.core.git
 collective.contact.widget = git ${remotes:collective}/collective.contact.widget.git pushurl=${remotes:collective_push}/collective.contact.widget.git
 plone.formwidget.masterselect = git ${remotes:collective}/plone.formwidget.masterselect.git pushurl=${remotes:collective_push}/plone.formwidget.masterselect.git
-z3c.form = git ${remotes:zopefoundation}/z3c.form pushurl=${remotes:zopefoundation_push}/z3c.form
diff --git a/src/collective/contact/core/content/organization.py b/src/collective/contact/core/content/organization.py
index ec6cd10..4301de4 100644
--- a/src/collective/contact/core/content/organization.py
+++ b/src/collective/contact/core/content/organization.py
@@ -100,9 +100,9 @@ class Organization(Container):
         e.g. for HR service in Division Bar in Organization Foo :
         [u"Organization Foo", u"Division Bar", u"HR service"]
         """
-        return [item.Title() for item in self.get_organizations_chain(first_index=first_index)]
+        return [item.title for item in self.get_organizations_chain(first_index=first_index)]
 
-    def get_full_title(self, separator=' / ', first_index=0):
+    def get_full_title(self, separator=u' / ', first_index=0):
         """Returns the full title of the organization
         It is constituted by the list of the names of the organizations and
         sub-organizations in this organization separated by slashes
diff --git a/src/collective/contact/core/indexers.py b/src/collective/contact/core/indexers.py
index 0c1e2c7..fd1f754 100644
--- a/src/collective/contact/core/indexers.py
+++ b/src/collective/contact/core/indexers.py
@@ -6,7 +6,7 @@ from collective.contact.core.content.organization import IOrganization
 
 @indexer(IOrganization)
 def organization_searchable_text(obj):
-    return ' '.join(obj.get_organizations_titles())
+    return u' '.join(obj.get_organizations_titles())
 
 
 @indexer(IHeldPosition)
@@ -18,4 +18,4 @@ def held_position_searchable_text(obj):
         indexed_fields.append(position.title)
     organization = obj.get_organization()
     indexed_fields.extend(organization.get_organizations_titles())
-    return ' '.join(indexed_fields)
+    return u' '.join(indexed_fields)
diff --git a/src/collective/contact/core/tests/test_content_types.py b/src/collective/contact/core/tests/test_content_types.py
index 22b584b..878975c 100644
--- a/src/collective/contact/core/tests/test_content_types.py
+++ b/src/collective/contact/core/tests/test_content_types.py
@@ -108,39 +108,39 @@ class TestOrganization(TestContentTypes):
 
     def test_get_organizations_titles(self):
         corpsa_titles = self.corpsa.get_organizations_titles()
-        self.assertIn('Armée de terre', corpsa_titles)
-        self.assertIn('Corps A', corpsa_titles)
+        self.assertIn(u'Armée de terre', corpsa_titles)
+        self.assertIn(u'Corps A', corpsa_titles)
         self.assertEquals(len(corpsa_titles), 2)
 
         division_alpha_titles = self.divisionalpha.get_organizations_titles()
-        self.assertIn('Armée de terre', division_alpha_titles)
-        self.assertIn('Corps A', division_alpha_titles)
-        self.assertIn('Division Alpha', division_alpha_titles)
+        self.assertIn(u'Armée de terre', division_alpha_titles)
+        self.assertIn(u'Corps A', division_alpha_titles)
+        self.assertIn(u'Division Alpha', division_alpha_titles)
         self.assertEquals(len(division_alpha_titles), 3)
 
         brigadelh_titles = self.brigadelh.get_organizations_titles()
-        self.assertIn('Armée de terre', brigadelh_titles)
-        self.assertIn('Corps A', brigadelh_titles)
-        self.assertIn('Division Alpha', brigadelh_titles)
-        self.assertIn('Régiment H', brigadelh_titles)
-        self.assertIn('Brigade LH', brigadelh_titles)
+        self.assertIn(u'Armée de terre', brigadelh_titles)
+        self.assertIn(u'Corps A', brigadelh_titles)
+        self.assertIn(u'Division Alpha', brigadelh_titles)
+        self.assertIn(u'Régiment H', brigadelh_titles)
+        self.assertIn(u'Brigade LH', brigadelh_titles)
         self.assertEquals(len(brigadelh_titles), 5)
 
         brigadelh_titles = self.brigadelh.get_organizations_titles(first_index=2)
-        self.assertIn('Division Alpha', brigadelh_titles)
-        self.assertIn('Régiment H', brigadelh_titles)
-        self.assertIn('Brigade LH', brigadelh_titles)
+        self.assertIn(u'Division Alpha', brigadelh_titles)
+        self.assertIn(u'Régiment H', brigadelh_titles)
+        self.assertIn(u'Brigade LH', brigadelh_titles)
         self.assertEquals(len(brigadelh_titles), 3)
 
     def test_get_full_title(self):
         self.assertEqual(self.armeedeterre.get_full_title(),
-                         "Armée de terre")
+                         u"Armée de terre")
         self.assertEqual(self.brigadelh.get_full_title(),
-                         "Armée de terre / Corps A / Division Alpha / Régiment H / Brigade LH")
-        self.assertEqual(self.brigadelh.get_full_title(separator=' - '),
-                         "Armée de terre - Corps A - Division Alpha - Régiment H - Brigade LH")
-        self.assertEqual(self.brigadelh.get_full_title(separator=' - ', first_index=2),
-                         "Division Alpha - Régiment H - Brigade LH")
+                         u"Armée de terre / Corps A / Division Alpha / Régiment H / Brigade LH")
+        self.assertEqual(self.brigadelh.get_full_title(separator=u' - '),
+                         u"Armée de terre - Corps A - Division Alpha - Régiment H - Brigade LH")
+        self.assertEqual(self.brigadelh.get_full_title(separator=u' - ', first_index=2),
+                         u"Division Alpha - Régiment H - Brigade LH")
 
 
 class TestPosition(TestContentTypes):
diff --git a/travis.cfg b/travis.cfg
index 8cb72dc..0f72aba 100644
--- a/travis.cfg
+++ b/travis.cfg
@@ -1,27 +1,5 @@
 [buildout]
 extends =
+    https://raw.github.com/collective/buildout.plonetest/master/travis-4.3.x.cfg
     base.cfg
-
-parts =
-    download
-    install
-    test
-
-# network speedup
-eggs-directory = buildout-cache/eggs
-download-cache = buildout-cache/downloads
-
-socket-timeout = 3
-
-allow-hosts =
-    *.python.org
-    launchpad.net
-
-[download]
-recipe = hexagonit.recipe.download
-url = https://launchpad.net/plone/4.2/${buildout:plone-version}/+download/Plone-${buildout:plone-version}-UnifiedInstaller.tgz
-
-[install]
-recipe = collective.recipe.cmd
-on_install = true
-cmds = tar jxvf ${download:location}/Plone-${buildout:plone-version}-UnifiedInstaller/packages/buildout-cache.tar.bz2 1>/dev/null
+parts = download install test
diff --git a/versions.cfg b/versions.cfg
index b6ba357..128e215 100644
--- a/versions.cfg
+++ b/versions.cfg
@@ -1,14 +1,2 @@
 [versions]
-Pillow = 1.7.8
-collective.recipe.cmd = 0.6
-decorator = 3.4.0
-ecreall.helpers.testing = 1.3
-ecreall.helpers.upgrade = 1.1.1
-hexagonit.recipe.download = 1.6
-ipdb = 0.7
-ipython = 0.13.1
-plone.api = 1.0.0-rc.1
-six = 1.3.0
-vobject = 0.8.1c
 zc.buildout = 2.1.0
-zope.schema = 4.2.2