diff --git a/migrations/versions/0154_nullable_is_blank.py b/migrations/versions/0154_nullable_is_blank.py
new file mode 100644
index 000000000..6a2a214b2
--- /dev/null
+++ b/migrations/versions/0154_nullable_is_blank.py
@@ -0,0 +1,23 @@
+"""
+
+Revision ID: 0154_nullable_is_blank
+Revises: 0153_add_is_letter_contact_blank
+Create Date: 2018-01-05 15:49:36.522210
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = '0154_nullable_is_blank'
+down_revision = '0153_add_is_letter_contact_blank'
+
+
+def upgrade():
+    op.alter_column('templates', 'is_letter_contact_blank', nullable=True)
+    op.alter_column('templates_history', 'is_letter_contact_blank', nullable=True)
+
+
+def downgrade():
+    op.alter_column('templates', 'is_letter_contact_blank', nullable=True)
+    op.alter_column('templates_history', 'is_letter_contact_blank', nullable=True)