diff --git a/ki/models.py b/ki/models.py
index 231f0b1..fec1b46 100644
--- a/ki/models.py
+++ b/ki/models.py
@@ -16,13 +16,25 @@ class User(db.Model):
     freetext = Column(String(4000), default="")
     created = Column(DateTime, nullable=False)
     updated = Column(DateTime, onupdate=datetime.now, nullable=False)
+    auth_id = Column(String(50), nullable=False)
 
     contacts = relationship("Contact")
     address = relationship("Address", uselist=False, back_populates="user")
+    tokens = relationship("Token", uselist=False, back_populates="user")
     skills = relationship("UserSkill", back_populates="users")
     languages = relationship("UserLanguage", "users")
 
 
+class Token(db.Model):
+    __tablename__ = "token"
+
+    id = Column(Integer, primary_key=True)
+    user_id = Column(Integer, ForeignKey("user.id"))
+    token = Column(String(36), nullable=False)
+
+    user = relationship("User", back_populates="tokens")
+
+
 class Contact(db.Model):
     __tablename__ = "contact"
 
@@ -73,7 +85,7 @@ class UserSkill(db.Model):
 
     user_id = Column(Integer, ForeignKey("user.id"), primary_key=True)
     skill_id = Column(Integer, ForeignKey("skill.id"), primary_key=True)
-    level = Column(SmallInteger)
+    level = Column(SmallInteger, nullable=False)
 
     user = relationship("User", back_populates="skills")
     skill = relationship("Skill", back_populates="users")
@@ -96,7 +108,7 @@ class UserLanguage(db.Model):
 
     user_id = Column(Integer, ForeignKey("user.id"), primary_key=True)
     language_id = Column(Integer, ForeignKey("language.id"), primary_key=True)
-    level = Column(SmallInteger)
+    level = Column(SmallInteger, nullable=False)
 
     user = relationship("User", back_populates="languages")
     language = relationship("Language", back_populates="users")
diff --git a/migrations/versions/aebc7e73ad96_initial_migration.py b/migrations/versions/3dfe40b821a5_initial_migration.py
similarity index 85%
rename from migrations/versions/aebc7e73ad96_initial_migration.py
rename to migrations/versions/3dfe40b821a5_initial_migration.py
index 6eed83d..acc287a 100644
--- a/migrations/versions/aebc7e73ad96_initial_migration.py
+++ b/migrations/versions/3dfe40b821a5_initial_migration.py
@@ -1,8 +1,8 @@
 """Initial migration
 
-Revision ID: aebc7e73ad96
+Revision ID: 3dfe40b821a5
 Revises: 
-Create Date: 2021-06-12 09:45:28.376639
+Create Date: 2021-06-12 11:58:43.577221
 
 """
 from alembic import op
@@ -10,7 +10,7 @@ import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision = 'aebc7e73ad96'
+revision = '3dfe40b821a5'
 down_revision = None
 branch_labels = None
 depends_on = None
@@ -42,6 +42,7 @@ def upgrade():
     sa.Column('freetext', sa.String(length=4000), nullable=True),
     sa.Column('created', sa.DateTime(), nullable=False),
     sa.Column('updated', sa.DateTime(), nullable=False),
+    sa.Column('auth_id', sa.String(length=50), nullable=False),
     sa.PrimaryKeyConstraint('id'),
     sa.UniqueConstraint('nickname')
     )
@@ -66,10 +67,17 @@ def upgrade():
     sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
+    op.create_table('token',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=True),
+    sa.Column('token', sa.String(length=36), nullable=False),
+    sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
     op.create_table('user_language',
     sa.Column('user_id', sa.Integer(), nullable=False),
     sa.Column('language_id', sa.Integer(), nullable=False),
-    sa.Column('level', sa.SmallInteger(), nullable=True),
+    sa.Column('level', sa.SmallInteger(), nullable=False),
     sa.ForeignKeyConstraint(['language_id'], ['language.id'], ),
     sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
     sa.PrimaryKeyConstraint('user_id', 'language_id')
@@ -77,7 +85,7 @@ def upgrade():
     op.create_table('user_skill',
     sa.Column('user_id', sa.Integer(), nullable=False),
     sa.Column('skill_id', sa.Integer(), nullable=False),
-    sa.Column('level', sa.SmallInteger(), nullable=True),
+    sa.Column('level', sa.SmallInteger(), nullable=False),
     sa.ForeignKeyConstraint(['skill_id'], ['skill.id'], ),
     sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
     sa.PrimaryKeyConstraint('user_id', 'skill_id')
@@ -89,6 +97,7 @@ def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
     op.drop_table('user_skill')
     op.drop_table('user_language')
+    op.drop_table('token')
     op.drop_table('contact')
     op.drop_table('address')
     op.drop_table('user')