diff --git a/apps/official/BiscuIT-App-Alsijil b/apps/official/BiscuIT-App-Alsijil
index 5ff76246b7de192990f5ec3c18c8c42b751072aa..51e723c85ec9694c6597a7dfdc4fce2930449819 160000
--- a/apps/official/BiscuIT-App-Alsijil
+++ b/apps/official/BiscuIT-App-Alsijil
@@ -1 +1 @@
-Subproject commit 5ff76246b7de192990f5ec3c18c8c42b751072aa
+Subproject commit 51e723c85ec9694c6597a7dfdc4fce2930449819
diff --git a/apps/official/BiscuIT-App-Chronos b/apps/official/BiscuIT-App-Chronos
index 442d030f115f7f34863a2a4c764f7c31bdffa2ed..674a8c43fc24cd75b2230aff856e40fed16a91a9 160000
--- a/apps/official/BiscuIT-App-Chronos
+++ b/apps/official/BiscuIT-App-Chronos
@@ -1 +1 @@
-Subproject commit 442d030f115f7f34863a2a4c764f7c31bdffa2ed
+Subproject commit 674a8c43fc24cd75b2230aff856e40fed16a91a9
diff --git a/apps/official/BiscuIT-App-Exlibris b/apps/official/BiscuIT-App-Exlibris
index 7619dc0a7bf8f2ef61de148642006f7ac00e52bb..97ca661b14b1c445c2f31f27901e759e55f6f124 160000
--- a/apps/official/BiscuIT-App-Exlibris
+++ b/apps/official/BiscuIT-App-Exlibris
@@ -1 +1 @@
-Subproject commit 7619dc0a7bf8f2ef61de148642006f7ac00e52bb
+Subproject commit 97ca661b14b1c445c2f31f27901e759e55f6f124
diff --git a/biscuit/core/models.py b/biscuit/core/models.py
index 21e872794d1dd5059d3bedfdd1f2a75b56fb5b45..6595f43ab6319ff9fa4e98cb944fb47c828a832f 100644
--- a/biscuit/core/models.py
+++ b/biscuit/core/models.py
@@ -22,6 +22,10 @@ class School(models.Model):
         'Official name of the school, e.g. as given by supervisory authority'))
 
 
+    class Meta:
+        ordering = ['name', 'name_official']
+
+
 class Person(SchoolRelated):
     """ A model describing any person related to a school, including, but not
     limited to, students, teachers and guardians (parents).
@@ -29,6 +33,7 @@ class Person(SchoolRelated):
 
     class Meta:
         unique_together = [['school', 'short_name'], ['school', 'import_ref']]
+        ordering = ['last_name', 'first_name']
 
     SEX_CHOICES = [
         ('f', _('female')),
@@ -118,6 +123,7 @@ class Group(SchoolRelated):
 
     class Meta:
         unique_together = [['school', 'name'], ['school', 'short_name']]
+        ordering = ['short_name', 'name']
 
     name = models.CharField(verbose_name=_(
         'Long name of group'), max_length=30)