diff --git a/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/down.sql b/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/down.sql
index 291a97c5..153f6530 100644
--- a/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/down.sql
+++ b/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/down.sql
@@ -1 +1,3 @@
--- This file should undo anything in `up.sql`
\ No newline at end of file
+ALTER TABLE users DROP CONSTRAINT users_fqn;
+ALTER TABLE blogs DROP CONSTRAINT blogs_actor_id;
+ALTER TABLE blogs DROP CONSTRAINT blogs_fqn;
diff --git a/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/up.sql b/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/up.sql
index 33cf74b5..6ee58e24 100644
--- a/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/up.sql
+++ b/migrations/postgres/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/up.sql
@@ -1 +1,3 @@
--- Your SQL goes here
\ No newline at end of file
+ALTER TABLE users ADD CONSTRAINT users_fqn UNIQUE (fqn);
+ALTER TABLE blogs ADD CONSTRAINT blogs_actor_id UNIQUE (actor_id);
+ALTER TABLE blogs ADD CONSTRAINT blogs_fqn UNIQUE (fqn);