diff --git a/src/app/alembic/versions/85ece6cfed22_.py b/src/app/alembic/versions/85ece6cfed22_.py
new file mode 100644
index 0000000..9f6ccf3
--- /dev/null
+++ b/src/app/alembic/versions/85ece6cfed22_.py
@@ -0,0 +1,30 @@
+"""empty message
+
+Revision ID: 85ece6cfed22
+Revises: 738a796c3f0a
+Create Date: 2021-12-27 23:08:26.124204
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '85ece6cfed22'
+down_revision = '738a796c3f0a'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('services', sa.Column('cache', sa.String(length=12), nullable=True))
+    op.drop_column('services', 'privileged')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('services', sa.Column('privileged', sa.BOOLEAN(), server_default=sa.text('false'), autoincrement=False, nullable=False))
+    op.drop_column('services', 'cache')
+    # ### end Alembic commands ###
\ No newline at end of file
diff --git a/src/app/models.py b/src/app/models.py
index 89ffd9d..f66d780 100644
--- a/src/app/models.py
+++ b/src/app/models.py
@@ -17,6 +17,12 @@ class Statuses(str, Enum):
     blocked = "blocked"
 
 
+class CachePrivileges(str, Enum):
+    original = "original"
+    buffer = "buffer"
+    no_cache = "no_cache"
+
+
 class Service(ormar.Model):
     class Meta(BaseMeta):
         tablename = "services"
@@ -25,5 +31,5 @@ class Service(ormar.Model):
     token: str = ormar.String(max_length=128, unique=True)  # type: ignore
     user: int = ormar.BigInteger()  # type: ignore
     status: str = ormar.String(max_length=12, choices=list(Statuses), default=Statuses.pending)  # type: ignore
-    privileged: bool = ormar.Boolean(default=False, server_default='f', nullable=False)  # type: ignore
+    cache: str = ormar.String(max_length=12, choices=list(CachePrivileges), default=CachePrivileges.no_cache)  # type: ignore
     created_time = ormar.DateTime(timezone=True, default=datetime.now)
diff --git a/src/app/serializers.py b/src/app/serializers.py
index e94de8a..fcc9adf 100644
--- a/src/app/serializers.py
+++ b/src/app/serializers.py
@@ -2,13 +2,14 @@ from datetime import datetime
 
 from pydantic import BaseModel, constr
 
-from app.models import Statuses
+from app.models import Statuses, CachePrivileges
 
 
 class ServiceCreate(BaseModel):
     token: constr(max_length=128)  # type: ignore
     user: str
     status: Statuses
+    cache: CachePrivileges
 
 
 class ServiceDetail(BaseModel):
@@ -16,5 +17,5 @@ class ServiceDetail(BaseModel):
     token: str
     user: str
     status: str
-    privileged: bool
+    cache: str
     created_time: datetime