diff --git a/snowexsql/tables/base.py b/snowexsql/tables/base.py
index 3318c90..7e29dc4 100644
--- a/snowexsql/tables/base.py
+++ b/snowexsql/tables/base.py
@@ -6,7 +6,7 @@
 """
 
 from geoalchemy2 import Geometry
-from sqlalchemy import Column, Float, Integer, Time
+from sqlalchemy import Column, Float, Integer, Time, Date
 from sqlalchemy.orm import DeclarativeBase
 
 
@@ -18,6 +18,7 @@ class Base(DeclarativeBase):
     __table_args__ = {"schema": "public"}
     # Primary Key
     id = Column(Integer, primary_key=True)
+    date_accessed = Column(Date)
 
 
 class SingleLocationData:
diff --git a/snowexsql/tables/doi.py b/snowexsql/tables/doi.py
index e97fc62..b643e6d 100644
--- a/snowexsql/tables/doi.py
+++ b/snowexsql/tables/doi.py
@@ -1,4 +1,4 @@
-from sqlalchemy import Column, String, Integer, ForeignKey, Date
+from sqlalchemy import Column, String, Integer, ForeignKey
 from sqlalchemy.orm import relationship, declared_attr
 
 from .base import Base
@@ -24,5 +24,3 @@ def doi_id(cls):
     @declared_attr
     def doi(cls):
         return relationship('DOI')
-
-    date_accessed = Column(Date)