diff --git a/migrations/sqlite/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/down.sql b/migrations/sqlite/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/down.sql
new file mode 100644
index 00000000..7811d40a
--- /dev/null
+++ b/migrations/sqlite/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/down.sql
@@ -0,0 +1,3 @@
+DROP INDEX users_fqn;
+DROP INDEX blogs_actor_id;
+DROP INDEX blogs_fqn;
diff --git a/migrations/sqlite/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/up.sql b/migrations/sqlite/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/up.sql
new file mode 100644
index 00000000..667c003c
--- /dev/null
+++ b/migrations/sqlite/2023-01-09-070959_add_unique_constraint_to_activity_pub_related_fields/up.sql
@@ -0,0 +1,3 @@
+CREATE UNIQUE INDEX users_fqn ON users (fqn);
+CREATE UNIQUE INDEX blogs_actor_id ON blogs (actor_id);
+CREATE UNIQUE INDEX blogs_fqn ON blogs (fqn);