diff --git a/heat/db/sqlalchemy/migrate_repo/versions/019_resource_action_status.py b/heat/db/sqlalchemy/migrate_repo/versions/019_resource_action_status.py
index 5684c8453..a9a8f4154 100644
--- a/heat/db/sqlalchemy/migrate_repo/versions/019_resource_action_status.py
+++ b/heat/db/sqlalchemy/migrate_repo/versions/019_resource_action_status.py
@@ -22,11 +22,7 @@ def upgrade(migrate_engine):
     # Align the current state/state_description with the
     # action/status now used in the event table
     action = sqlalchemy.Column('action',
-                               sqlalchemy.String(length=255,
-                                                 convert_unicode=False,
-                                                 assert_unicode=None,
-                                                 unicode_error=None,
-                                                 _warn_on_bytestring=False))
+                               sqlalchemy.String(length=255))
     action.create(resource)
     resource.c.state.alter(name='status')
     resource.c.state_description.alter(name='status_reason')
diff --git a/heat/db/sqlalchemy/migrate_repo/versions/020_stack_action.py b/heat/db/sqlalchemy/migrate_repo/versions/020_stack_action.py
index e6130edf0..4d635650d 100644
--- a/heat/db/sqlalchemy/migrate_repo/versions/020_stack_action.py
+++ b/heat/db/sqlalchemy/migrate_repo/versions/020_stack_action.py
@@ -21,11 +21,7 @@ def upgrade(migrate_engine):
     stack = sqlalchemy.Table('stack', meta, autoload=True)
     # Align with action/status now used in the event/resource tables
     action = sqlalchemy.Column('action',
-                               sqlalchemy.String(length=255,
-                                                 convert_unicode=False,
-                                                 assert_unicode=None,
-                                                 unicode_error=None,
-                                                 _warn_on_bytestring=False))
+                               sqlalchemy.String(length=255))
     action.create(stack)