diff --git a/VERSION b/VERSION
index 589268e6..3a3cd8cc 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.0
\ No newline at end of file
+1.3.1
diff --git a/src/ensembl/production/metadata/api/models/assembly.py b/src/ensembl/production/metadata/api/models/assembly.py
index 5af959ff..724842f2 100644
--- a/src/ensembl/production/metadata/api/models/assembly.py
+++ b/src/ensembl/production/metadata/api/models/assembly.py
@@ -15,10 +15,10 @@
 from sqlalchemy.dialects.mysql import TINYINT
 from sqlalchemy.orm import relationship
 
-from ensembl.production.metadata.api.models.base import Base
+from ensembl.production.metadata.api.models.base import Base, LoadAble
 
 
-class Assembly(Base):
+class Assembly(LoadAble, Base):
     __tablename__ = 'assembly'
 
     assembly_id = Column(Integer, primary_key=True)
@@ -42,7 +42,7 @@ class Assembly(Base):
     genomes = relationship("Genome", back_populates="assembly", cascade="all, delete, delete-orphan")
 
 
-class AssemblySequence(Base):
+class AssemblySequence(LoadAble, Base):
     __tablename__ = 'assembly_sequence'
     __table_args__ = (
         Index('assembly_sequence_assembly_id_accession_5f3e5119_uniq', 'assembly_id', 'accession', unique=True),
diff --git a/src/ensembl/production/metadata/api/models/genome.py b/src/ensembl/production/metadata/api/models/genome.py
index 1819b51f..de366221 100644
--- a/src/ensembl/production/metadata/api/models/genome.py
+++ b/src/ensembl/production/metadata/api/models/genome.py
@@ -15,10 +15,10 @@
 from sqlalchemy.dialects.mysql import DATETIME, TINYINT
 from sqlalchemy.orm import relationship
 
-from ensembl.production.metadata.api.models.base import Base
+from ensembl.production.metadata.api.models.base import Base, LoadAble
 
 
-class Genome(Base):
+class Genome(LoadAble, Base):
     __tablename__ = "genome"
 
     genome_id = Column(Integer, primary_key=True)
@@ -38,7 +38,7 @@ class Genome(Base):
     organism = relationship("Organism", back_populates="genomes")
 
 
-class GenomeDataset(Base):
+class GenomeDataset(LoadAble, Base):
     __tablename__ = "genome_dataset"
 
     genome_dataset_id = Column(Integer, primary_key=True)
@@ -58,7 +58,7 @@ class GenomeDataset(Base):
     ensembl_release = relationship("EnsemblRelease", back_populates="genome_datasets")
 
 
-class GenomeRelease(Base):
+class GenomeRelease(LoadAble, Base):
     __tablename__ = "genome_release"
 
     genome_release_id = Column(Integer, primary_key=True)
diff --git a/src/ensembl/production/metadata/api/models/organism.py b/src/ensembl/production/metadata/api/models/organism.py
index 84bb3b1a..739baf42 100644
--- a/src/ensembl/production/metadata/api/models/organism.py
+++ b/src/ensembl/production/metadata/api/models/organism.py
@@ -15,10 +15,10 @@
 from sqlalchemy.dialects.mysql import TINYINT
 from sqlalchemy.orm import relationship
 
-from ensembl.production.metadata.api.models.base import Base
+from ensembl.production.metadata.api.models.base import Base, LoadAble
 
 
-class Organism(Base):
+class Organism(LoadAble, Base):
     __tablename__ = "organism"
 
     organism_id = Column(Integer, primary_key=True)
@@ -39,7 +39,7 @@ class Organism(Base):
     # organim_id and taxonomy_id to taxonomy_node #DIFFERENT DATABASE
 
 
-class OrganismGroup(Base):
+class OrganismGroup(LoadAble, Base):
     __tablename__ = "organism_group"
     __table_args__ = (
         Index("group_type_name_63c2f6ac_uniq", "type", "name", unique=True),
@@ -57,7 +57,7 @@ class OrganismGroup(Base):
     # none
 
 
-class OrganismGroupMember(Base):
+class OrganismGroupMember(LoadAble, Base):
     __tablename__ = "organism_group_member"
     __table_args__ = (
         Index("organism_group_member_organism_id_organism_gro_fe8f49ac_uniq", "organism_id", "organism_group_id",
diff --git a/src/ensembl/production/metadata/api/models/release.py b/src/ensembl/production/metadata/api/models/release.py
index a964efc2..126b2fae 100644
--- a/src/ensembl/production/metadata/api/models/release.py
+++ b/src/ensembl/production/metadata/api/models/release.py
@@ -13,10 +13,10 @@
 from sqlalchemy.dialects.mysql import TINYINT
 from sqlalchemy.orm import relationship
 
-from ensembl.production.metadata.api.models.base import Base
+from ensembl.production.metadata.api.models.base import Base, LoadAble
 
 
-class EnsemblSite(Base):
+class EnsemblSite(LoadAble, Base):
     __tablename__ = 'ensembl_site'
 
     site_id = Column(Integer, primary_key=True)
@@ -30,7 +30,7 @@ class EnsemblSite(Base):
     # none
 
 
-class EnsemblRelease(Base):
+class EnsemblRelease(LoadAble, Base):
     __tablename__ = 'ensembl_release'
     __table_args__ = (
         Index('ensembl_release_version_site_id_b743399a_uniq', 'version', 'site_id', unique=True),