diff --git a/common/urls.py b/common/urls.py
index fb031bb..367e08b 100644
--- a/common/urls.py
+++ b/common/urls.py
@@ -5,7 +5,7 @@ from django.views.generic import RedirectView
 from stages import views
 
 urlpatterns = [
-    url(r'^$', RedirectView.as_view(url='/admin/'), name='home'),
+    url(r'^$', RedirectView.as_view(url='/admin/', permanent=True), name='home'),
 
     url(r'^admin/', include(admin.site.urls)),
     url(r'^data-import/', include('tabimport.urls')),
diff --git a/requirements.txt b/requirements.txt
index f8b54a2..d7f8017 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Django >= 1.8
--e git+https://github.com/claudep/tabimport.git#egg=tabimport
-openpyxl==2.2.2
+Django==1.8.6
+tabimport
+openpyxl==2.2.6
 xlrd
diff --git a/stages/admin.py b/stages/admin.py
index 68a8bee..923d290 100644
--- a/stages/admin.py
+++ b/stages/admin.py
@@ -1,6 +1,3 @@
-# -*- encoding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django import forms
 from django.contrib import admin
 from django.db import models
@@ -15,7 +12,7 @@ class KlassAdmin(admin.ModelAdmin):
 
 
 class StudentAdmin(admin.ModelAdmin):
-    list_display = ('__unicode__', 'pcode', 'city', 'klass', 'archived')
+    list_display = ('__str__', 'pcode', 'city', 'klass', 'archived')
     ordering = ('last_name', 'first_name')
     list_filter = ('klass', 'archived')
     search_fields = ('last_name', 'first_name', 'pcode', 'city', 'klass__name')
@@ -37,11 +34,11 @@ class StudentAdmin(admin.ModelAdmin):
 
 
 class ReferentAdmin(admin.ModelAdmin):
-    list_display = ('__unicode__', 'abrev', 'email')
+    list_display = ('__str__', 'abrev', 'email')
 
 
 class CorpContactAdmin(admin.ModelAdmin):
-    list_display = ('__unicode__', 'corporation', 'role')
+    list_display = ('__str__', 'corporation', 'role')
     ordering = ('last_name', 'first_name')
     search_fields = ('last_name', 'first_name', 'role')
     fields = (('corporation', 'is_main', 'always_cc'),
diff --git a/stages/models.py b/stages/models.py
index 9676f89..6ed079e 100644
--- a/stages/models.py
+++ b/stages/models.py
@@ -1,5 +1,3 @@
-# -*- encoding: utf-8 -*-
-from __future__ import unicode_literals
 from datetime import date
 
 from django.db import models
@@ -22,7 +20,7 @@ class Section(models.Model):
     class Meta:
         verbose_name = "Filière"
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
 
@@ -33,7 +31,7 @@ class Level(models.Model):
         verbose_name = "Niveau"
         verbose_name_plural = "Niveaux"
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
     def delta(self, diff):
@@ -53,7 +51,7 @@ class Klass(models.Model):
     class Meta:
         verbose_name = "Classe"
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
 
@@ -76,7 +74,7 @@ class Student(models.Model):
     class Meta:
         verbose_name = "Étudiant"
 
-    def __unicode__(self):
+    def __str__(self):
         return '%s %s' % (self.last_name, self.first_name)
 
     @classmethod
@@ -108,7 +106,7 @@ class Referent(models.Model):
         verbose_name = "Référent"
         ordering = ('last_name', 'first_name')
 
-    def __unicode__(self):
+    def __str__(self):
         return '%s %s' % (self.last_name, self.first_name)
 
 
@@ -130,7 +128,7 @@ class Corporation(models.Model):
         verbose_name = "Institution"
         ordering = ('name',)
 
-    def __unicode__(self):
+    def __str__(self):
         sect = ' (%s)' % self.sector if self.sector else ''
         return "%s%s, %s %s" % (self.name, sect, self.pcode, self.city)
 
@@ -150,7 +148,7 @@ class CorpContact(models.Model):
     class Meta:
         verbose_name = "Contact"
 
-    def __unicode__(self):
+    def __str__(self):
         return '%s %s' % (self.last_name, self.first_name)
 
 
@@ -161,7 +159,7 @@ class Domain(models.Model):
         verbose_name = "Domaine"
         ordering = ('name',)
 
-    def __unicode__(self):
+    def __str__(self):
         return self.name
 
 
@@ -177,7 +175,7 @@ class Period(models.Model):
         verbose_name = "Période de stage"
         ordering = ('-start_date',)
 
-    def __unicode__(self):
+    def __str__(self):
         return '%s (%s)' % (self.dates, self.title)
 
     @property
@@ -215,7 +213,7 @@ class Availability(models.Model):
     class Meta:
         verbose_name = "Disponibilité"
 
-    def __unicode__(self):
+    def __str__(self):
         return '%s - %s (%s) - %s' % (self.period, self.corporation, self.domain, self.contact)
 
     @property
@@ -237,5 +235,5 @@ class Training(models.Model):
     class Meta:
         verbose_name = "Stage"
 
-    def __unicode__(self):
+    def __str__(self):
         return '%s chez %s (%s)' % (self.student, self.availability.corporation, self.availability.period)
diff --git a/stages/views.py b/stages/views.py
index c32effa..5ece624 100644
--- a/stages/views.py
+++ b/stages/views.py
@@ -159,7 +159,7 @@ def period_students(request, pk):
         ).order_by('last_name')
     trainings = dict((t.student_id, t.id) for t in Training.objects.filter(availability__period=period))
     data = [{
-        'name': unicode(s),
+        'name': str(s),
         'id': s.id,
         'training_id': trainings.get(s.id),
         'klass': s.klass.name} for s in students]