diff --git a/apiserver/alembic/versions/201711272050_5c3b1509e65d_change_game_id_type.py b/apiserver/alembic/versions/201711272050_5c3b1509e65d_change_game_id_type.py
new file mode 100644
index 00000000..a11ff70b
--- /dev/null
+++ b/apiserver/alembic/versions/201711272050_5c3b1509e65d_change_game_id_type.py
@@ -0,0 +1,87 @@
+"""Change game id type.
+
+Revision ID: 5c3b1509e65d
+Revises: 451d4bb125cb
+Create Date: 2017-11-27 20:50:51.717382+00:00
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+
+# revision identifiers, used by Alembic.
+revision = '5c3b1509e65d'
+down_revision = '451d4bb125cb'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.drop_constraint('game_stat_ibfk_1', 'game_stat', type_='foreignkey')
+    op.drop_constraint('game_view_stat_ibfk_1', 'game_view_stat',
+                       type_='foreignkey')
+    op.drop_constraint('game_bot_stat_ibfk_1', 'game_bot_stat',
+                       type_='foreignkey')
+    op.drop_constraint('game_participant_ibfk_4', 'game_participant',
+                       type_='foreignkey')
+    op.alter_column('game', 'id',
+                    type_=mysql.INTEGER(display_width=9, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=True)
+    op.alter_column('game_stat', 'game_id',
+                    type_=mysql.INTEGER(display_width=9, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.alter_column('game_view_stat', 'game_id',
+                    type_=mysql.INTEGER(display_width=9, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.alter_column('game_bot_stat', 'game_id',
+                    type_=mysql.INTEGER(display_width=9, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.alter_column('game_participant', 'game_id',
+                    type_=mysql.INTEGER(display_width=9, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.create_foreign_key('game_stat_ibfk_1', 'game_stat', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+    op.create_foreign_key('game_view_stat_ibfk_1', 'game_view_stat', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+    op.create_foreign_key('game_bot_stat_ibfk_1', 'game_bot_stat', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+    op.create_foreign_key('game_participant_ibfk_4', 'game_participant', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+
+
+def downgrade():
+    op.drop_constraint('game_stat_ibfk_1', 'game_stat', type_='foreignkey')
+    op.drop_constraint('game_view_stat_ibfk_1', 'game_view_stat',
+                       type_='foreignkey')
+    op.drop_constraint('game_bot_stat_ibfk_1', 'game_bot_stat',
+                       type_='foreignkey')
+    op.drop_constraint('game_participant_ibfk_4', 'game_participant',
+                       type_='foreignkey')
+    op.alter_column('game', 'id',
+                    type_=mysql.MEDIUMINT(display_width=8, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=True)
+    op.alter_column('game_stat', 'game_id',
+                    type_=mysql.MEDIUMINT(display_width=8, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.alter_column('game_view_stat', 'game_id',
+                    type_=mysql.MEDIUMINT(display_width=8, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.alter_column('game_stat', 'game_id',
+                    type_=mysql.MEDIUMINT(display_width=8, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.alter_column('game_bot_stat', 'game_id',
+                    type_=mysql.MEDIUMINT(display_width=8, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.alter_column('game_participant', 'game_id',
+                    type_=mysql.MEDIUMINT(display_width=8, unsigned=True),
+                    existing_nullable=False, existing_autoincrement=False)
+    op.create_foreign_key('game_stat_ibfk_1', 'game_stat', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+    op.create_foreign_key('game_view_stat_ibfk_1', 'game_view_stat', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+    op.create_foreign_key('game_bot_stat_ibfk_1', 'game_bot_stat', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+    op.create_foreign_key('game_participant_ibfk_4', 'game_participant', 'game',
+                          ['game_id'], ['id'], ondelete='CASCADE')
+