diff --git a/c2corg_api/models/association_views.py b/c2corg_api/models/association_views.py
index d2fea4ec9..d5f2fe034 100644
--- a/c2corg_api/models/association_views.py
+++ b/c2corg_api/models/association_views.py
@@ -96,7 +96,7 @@ def _get_select_waypoints_for_routes_aggregated():
                 type_=postgresql.ARRAY(Integer)).label('waypoint_ids')
         ]). \
         select_from(all_waypoints). \
-        group_by(all_waypoints.c.route_id)
+        group_by(all_waypoints.c.route_id).subquery()
 
 
 class WaypointsForRoutesView(Base):
@@ -157,7 +157,7 @@ def _get_select_waypoints_for_outings_aggregated():
                 type_=postgresql.ARRAY(Integer)).label('waypoint_ids')
         ]). \
         select_from(waypoints_for_outings). \
-        group_by(waypoints_for_outings.c.outing_id)
+        group_by(waypoints_for_outings.c.outing_id).subquery()
 
 
 class WaypointsForOutingsView(Base):
@@ -200,7 +200,7 @@ def _get_select_users_for_outings_aggregated():
             Association.parent_document_type == user_type,
             Association.child_document_type == outing_type
         )). \
-        group_by(Association.child_document_id)
+        group_by(Association.child_document_id).subquery()
 
 
 class UsersForOutingsView(Base):
@@ -243,7 +243,7 @@ def _get_select_routes_for_outings_aggregated():
             Association.parent_document_type == route_type,
             Association.child_document_type == outing_type
         )). \
-        group_by(Association.child_document_id)
+        group_by(Association.child_document_id).subquery()
 
 
 class RoutesForOutingsView(Base):
@@ -280,7 +280,7 @@ def _get_select_users_for_routes_aggregated():
                 type_=postgresql.ARRAY(Integer)).label('user_ids')
         ]). \
         select_from(DocumentTag). \
-        group_by(DocumentTag.document_id)
+        group_by(DocumentTag.document_id).subquery()
 
 
 class UsersForRoutesView(Base):
diff --git a/c2corg_api/models/feed.py b/c2corg_api/models/feed.py
index 941d4b50e..61246e298 100644
--- a/c2corg_api/models/feed.py
+++ b/c2corg_api/models/feed.py
@@ -58,7 +58,8 @@ class FilterArea(Base):
 User.has_area_filter = column_property(
     select([func.count(FilterArea.area_id) > 0]).
     where(FilterArea.user_id == User.id).
-    correlate_except(FilterArea),
+    correlate_except(FilterArea).
+    scalar_subquery(),
     deferred=True
 )
 User.feed_filter_areas = relationship('Area', secondary=FilterArea.__table__)
@@ -98,7 +99,8 @@ class FollowedUser(Base):
 User.is_following_users = column_property(
     select([func.count(FollowedUser.followed_user_id) > 0]).
     where(FollowedUser.follower_user_id == User.id).
-    correlate_except(FollowedUser),
+    correlate_except(FollowedUser).
+    scalar_subquery(),
     deferred=True
 )
 
@@ -474,7 +476,7 @@ def update_langs_of_changes(document_id):
     DBSession.execute(
         DocumentChange.__table__.update().
         where(DocumentChange.document_id == document_id).
-        values(langs=langs.select()))
+        values(langs=langs.select().scalar_subquery()))
 
 
 def get_linked_document(images_in):
diff --git a/c2corg_api/security/roles.py b/c2corg_api/security/roles.py
index 0db6153f3..fcb23db44 100644
--- a/c2corg_api/security/roles.py
+++ b/c2corg_api/security/roles.py
@@ -50,7 +50,7 @@ def is_valid_token(token):
 
 def add_or_retrieve_token(value, expire, userid):
     token = DBSession.query(Token). \
-        filter(Token.value == value, User.id == userid).first()
+        filter(Token.value == value, Token.userid == userid).first()
     if not token:
         token = Token(value=value, expire=expire, userid=userid)
         DBSession.add(token)
diff --git a/c2corg_api/views/document_delete.py b/c2corg_api/views/document_delete.py
index d061fdb88..a5e4a75dc 100644
--- a/c2corg_api/views/document_delete.py
+++ b/c2corg_api/views/document_delete.py
@@ -256,8 +256,8 @@ def _delete_document(self, document_id, document_type, redirecting=False):
     def _remove_merged_documents(self, document_id, document_type):
         merged_document_ids = DBSession.query(ArchiveDocument.document_id). \
             filter(ArchiveDocument.redirects_to == document_id).all()
-        for merged_document_id in merged_document_ids:
-            self._delete_document(merged_document_id, document_type, True)
+        for row in merged_document_ids:
+            self._delete_document(row.document_id, document_type, True)
 
 
 @resource(path='/documents/delete/{id}', cors_policy=cors_policy)
@@ -365,10 +365,11 @@ def remove_from_cache(document_id):
 
 
 def _remove_versions(document_id):
-    history_metadata_ids = DBSession. \
-        query(DocumentVersion.history_metadata_id). \
-        filter(DocumentVersion.document_id == document_id). \
-        all()
+    history_metadata_ids = [
+        row.history_metadata_id for row in
+        DBSession.query(DocumentVersion.history_metadata_id)\
+        .filter(DocumentVersion.document_id == document_id).all()
+    ]
     DBSession.query(DocumentVersion). \
         filter(DocumentVersion.document_id == document_id). \
         delete()
@@ -391,8 +392,11 @@ def _remove_locale_versions(document_id, lang):
         subquery('t')
     # Gets the list of history_metadata_id associated only
     # to the current locale:
-    history_metadata_ids = DBSession.query(t.c.history_metadata_id). \
-        filter(t.c.lang == lang).filter(t.c.cnt == 1).all()
+    history_metadata_ids = [
+        row.history_metadata_id
+        for row in DBSession.query(t.c.history_metadata_id)\
+        .filter(t.c.lang == lang).filter(t.c.cnt == 1).all()
+    ]
 
     DBSession.query(DocumentVersion). \
         filter(DocumentVersion.document_id == document_id). \
@@ -413,7 +417,7 @@ def _remove_archive_locale(archive_clazz_locale, document_id, lang=None):
         archive_document_locale_ids = query.subquery()
         DBSession.execute(archive_clazz_locale.__table__.delete().where(
             getattr(archive_clazz_locale, 'id').in_(
-                archive_document_locale_ids)
+                archive_document_locale_ids.select())
         ))
 
     query = DBSession.query(ArchiveDocumentLocale). \
@@ -431,12 +435,12 @@ def _remove_locale(clazz_locale, document_id, lang=None):
     document_locale_ids = query.subquery()
     # Remove links to comments (comments themselves are not removed)
     DBSession.execute(DocumentTopic.__table__.delete().where(
-        DocumentTopic.document_locale_id.in_(document_locale_ids)
+        DocumentTopic.document_locale_id.in_(document_locale_ids.select())
     ))
 
     if clazz_locale:
         DBSession.execute(clazz_locale.__table__.delete().where(
-            getattr(clazz_locale, 'id').in_(document_locale_ids)
+            getattr(clazz_locale, 'id').in_(document_locale_ids.select())
         ))
 
     query = DBSession.query(DocumentLocale). \
@@ -463,7 +467,7 @@ def _remove_archive(archive_clazz, document_id):
         filter(ArchiveDocument.document_id == document_id). \
         subquery()
     DBSession.execute(archive_clazz.__table__.delete().where(
-        getattr(archive_clazz, 'id').in_(archive_document_ids)
+        getattr(archive_clazz, 'id').in_(archive_document_ids.select())
     ))
 
     DBSession.query(ArchiveDocument). \
diff --git a/c2corg_api/views/document_info.py b/c2corg_api/views/document_info.py
index 7e5509950..c8d629dfd 100644
--- a/c2corg_api/views/document_info.py
+++ b/c2corg_api/views/document_info.py
@@ -89,12 +89,20 @@ def _load_document_info(self, document_id, lang, clazz):
                 filter(getattr(clazz, 'document_id') == document_id). \
                 options(joinedload(locales_type_eager).
                         load_only(*locales_load_only))
+
             document_query = add_load_for_profiles(document_query, clazz)
             document = document_query.first()
 
             if not document:
                 raise HTTPNotFound('document not found')
 
+            if document.document_id:
+                # TODO: find a better way than this workaround which calls
+                # `document_id` before `set_best_locale` expunge the object
+                # leading in: sqlalchemy.orm.exc.DetachedInstanceError:
+                # Parent instance <Article at ...> is not bound to a Session;
+                # deferred load operation of attribute 'document_id' cannot proceed
+                pass
             set_best_locale([document], lang)
 
         if document.redirects_to:
diff --git a/pytest.ini b/pytest.ini
index b0e5a945f..3ee4349c7 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,3 +1,7 @@
 [pytest]
 filterwarnings =
-    ignore::DeprecationWarning
\ No newline at end of file
+    ignore::DeprecationWarning:cornice
+    ignore::DeprecationWarning:pyramid
+    ignore::DeprecationWarning:elasticsearch
+    ignore::DeprecationWarning:pkg_resources
+    ignore::DeprecationWarning:jwt
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 87886b16a..84fe5b3cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ redis==5.2.1
 requests==2.32.3
 setuptools==77.0.3
 Shapely==2.0.7
-SQLAlchemy==1.3.24
+SQLAlchemy==1.4.7
 transaction==5.0
 waitress==3.0.2
 zope.sqlalchemy==3.1