diff --git a/smash/web/migrations/0066_subject.py b/smash/web/migrations/0066_subject.py
index 511f3560a02a48efb4d3a708ed1e538deab50795..b57fe844d05485e60d6c77ea66aa021e3a65c587 100644
--- a/smash/web/migrations/0066_subject.py
+++ b/smash/web/migrations/0066_subject.py
@@ -4,7 +4,7 @@ from __future__ import unicode_literals
 
 from django.db import migrations, models
 import django.db.models.deletion
-
+from django import VERSION as DJANGO_VERSION
 
 class Migration(migrations.Migration):
 
@@ -12,21 +12,41 @@ class Migration(migrations.Migration):
         ('web', '0065_auto_20171127_0957'),
     ]
 
-    operations = [
-        migrations.RunSQL('alter sequence web_subject_id_seq rename to web_studysubject_id_seq;'),
-        migrations.RunSQL('alter sequence web_subject_languages_id_seq rename to web_studysubject_languages_id_seq;'),
-        migrations.RunSQL('alter table web_studysubject rename constraint web_subject_flying_team_id_ef78de5d_fk_web_flyingteam_id to web_studysubject_flying_team_id_ef78de5d_fk_web_flyingteam_id;'),
-        migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_language_id_80eca4c1_fk_web_language_id to web_studysubject_languages_language_id_80eca4c1_fk_web_language_id;'),
-        migrations.RunSQL('alter table web_studysubject rename constraint web_subject_country_id_5d976875_fk_web_country_id to web_studysubject_country_id_5d976875_fk_web_country_id;'),
-        migrations.RunSQL('alter table web_studysubject rename constraint web_subject_default_location_id_da83b714_fk_web_location_id to web_studyubject_default_location_id_da83b714_fk_web_location_id;'),
-        migrations.RunSQL('alter table web_studysubject rename constraint web_subject_pkey to web_studysubject_pkey;'),
-        migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_pkey to web_studysubject_languages_pkey;'),
-        migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_subject_id_a5eb4f49_uniq to web_studysubject_languages_subject_id_a5eb4f49_uniq;'),
-        migrations.RunSQL('alter index if exists web_subject_15d1b6cd rename to web_studysubject_15d1b6cd;'),
-        migrations.RunSQL('alter index if exists web_subject_496f9482 rename to web_studysubject_496f9482;'),
-        migrations.RunSQL('alter index if exists web_subject_84b500ff rename to web_studysubject_84b500ff;'),
-        migrations.RunSQL('alter index if exists web_subject_9571fdf9 rename to web_studysubject_9571fdf9;'),
-        migrations.RunSQL('alter index if exists web_subject_languages_468679bd rename to web_studysubject_languages_468679bd;'),
-        migrations.RunSQL('alter index if exists web_subject_languages_ffaba1d1 rename to web_studysubject_languages_ffaba1d1;'),
-        migrations.RunSQL('alter index if exists web_subject_screening_number_75aa70c7_like rename to web_studysubject_screening_number_75aa70c7_like;')
-    ]
+    if DJANGO_VERSION[:2] < (1, 11):
+        operations = [
+            migrations.RunSQL('alter sequence web_subject_id_seq rename to web_studysubject_id_seq;'),
+            migrations.RunSQL('alter sequence web_subject_languages_id_seq rename to web_studysubject_languages_id_seq;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_flying_team_id_ef78de5d_fk_web_flyingteam_id to web_studysubject_flying_team_id_ef78de5d_fk_web_flyingteam_id;'),
+            migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_language_id_80eca4c1_fk_web_language_id to web_studysubject_languages_language_id_80eca4c1_fk_web_language_id;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_country_id_5d976875_fk_web_country_id to web_studysubject_country_id_5d976875_fk_web_country_id;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_default_location_id_da83b714_fk_web_location_id to web_studyubject_default_location_id_da83b714_fk_web_location_id;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_pkey to web_studysubject_pkey;'),
+            migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_pkey to web_studysubject_languages_pkey;'),
+            migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_subject_id_a5eb4f49_uniq to web_studysubject_languages_subject_id_a5eb4f49_uniq;'),
+            migrations.RunSQL('alter index if exists web_subject_15d1b6cd rename to web_studysubject_15d1b6cd;'),
+            migrations.RunSQL('alter index if exists web_subject_496f9482 rename to web_studysubject_496f9482;'),
+            migrations.RunSQL('alter index if exists web_subject_84b500ff rename to web_studysubject_84b500ff;'),
+            migrations.RunSQL('alter index if exists web_subject_9571fdf9 rename to web_studysubject_9571fdf9;'),
+            migrations.RunSQL('alter index if exists web_subject_languages_468679bd rename to web_studysubject_languages_468679bd;'),
+            migrations.RunSQL('alter index if exists web_subject_languages_ffaba1d1 rename to web_studysubject_languages_ffaba1d1;'),
+            migrations.RunSQL('alter index if exists web_subject_screening_number_75aa70c7_like rename to web_studysubject_screening_number_75aa70c7_like;')
+        ]
+    else:
+        operations = [
+            migrations.RunSQL('alter sequence web_subject_id_seq rename to web_studysubject_id_seq;'),
+            migrations.RunSQL('alter sequence web_subject_languages_id_seq rename to web_studysubject_languages_id_seq;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_flying_team_id_ef78de5d_fk_web_flyingteam_id to web_studysubject_flying_team_id_ef78de5d_fk_web_flyingteam_id;'),
+            migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_language_id_80eca4c1_fk_web_language_id to web_studysubject_languages_language_id_80eca4c1_fk_web_language_id;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_country_id_5d976875_fk_web_country_id to web_studysubject_country_id_5d976875_fk_web_country_id;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_default_location_id_da83b714_fk_web_location_id to web_studyubject_default_location_id_da83b714_fk_web_location_id;'),
+            migrations.RunSQL('alter table web_studysubject rename constraint web_subject_pkey to web_studysubject_pkey;'),
+            migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_pkey to web_studysubject_languages_pkey;'),
+            migrations.RunSQL('alter table web_studysubject_languages rename constraint web_subject_languages_subject_id_language_id_a5eb4f49_uniq to web_studysubject_languages_subject_id_language_id_a5eb4f49_uniq;'),
+            migrations.RunSQL('alter index if exists web_subject_15d1b6cd rename to web_studysubject_15d1b6cd;'),
+            migrations.RunSQL('alter index if exists web_subject_496f9482 rename to web_studysubject_496f9482;'),
+            migrations.RunSQL('alter index if exists web_subject_84b500ff rename to web_studysubject_84b500ff;'),
+            migrations.RunSQL('alter index if exists web_subject_9571fdf9 rename to web_studysubject_9571fdf9;'),
+            migrations.RunSQL('alter index if exists web_subject_languages_468679bd rename to web_studysubject_languages_468679bd;'),
+            migrations.RunSQL('alter index if exists web_subject_languages_ffaba1d1 rename to web_studysubject_languages_ffaba1d1;'),
+            migrations.RunSQL('alter index if exists web_subject_screening_number_75aa70c7_like rename to web_studysubject_screening_number_75aa70c7_like;')
+        ]
diff --git a/smash/web/migrations/0067_subject.py b/smash/web/migrations/0067_subject.py
index 6039e17520676f685812939e069109492ba20cf5..1d6b45e6679e20d3e3a481b1e6be46f460f877ad 100644
--- a/smash/web/migrations/0067_subject.py
+++ b/smash/web/migrations/0067_subject.py
@@ -12,6 +12,9 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
+        migrations.RunSQL('alter index if exists web_subject_default_written_communication_language_id_0bce1d22 rename to web_studysubject_default_written_communication_language_id_0bce1d22;'),
+        migrations.RunSQL('alter index if exists web_subject_languages_subject_id_2cf93044 rename to web_studysubject_languages_subject_id_2cf93044;'),
+        migrations.RunSQL('alter index if exists web_subject_languages_language_id_80eca4c1 rename to web_studysubject_languages_language_id_80eca4c1;'),
         migrations.CreateModel(
             name='Subject',
             fields=[