diff --git a/migrations/versions/0170_hidden_non_nullable.py b/migrations/versions/0170_hidden_non_nullable.py
new file mode 100644
index 000000000..b8ceedf0d
--- /dev/null
+++ b/migrations/versions/0170_hidden_non_nullable.py
@@ -0,0 +1,25 @@
+"""
+
+Revision ID: 0170_hidden_non_nullable
+Revises: 0169_hidden_templates_nullable
+Create Date: 2018-02-21 14:05:04.448977
+
+"""
+from alembic import op
+
+
+revision = '0170_hidden_non_nullable'
+down_revision = '0169_hidden_templates_nullable'
+
+
+def upgrade():
+    op.execute('UPDATE templates SET hidden=false WHERE hidden is NULL')
+    op.execute('UPDATE templates_history SET hidden=false WHERE hidden is NULL')
+
+    op.alter_column('templates', 'hidden', nullable=False)
+    op.alter_column('templates_history', 'hidden', nullable=False)
+
+
+def downgrade():
+    op.alter_column('templates', 'hidden', nullable=True)
+    op.alter_column('templates_history', 'hidden', nullable=True)