diff --git a/migrations/2024-12-15-151642_add_index_on_person_id_read_for_read_only_post_actions/down.sql b/migrations/2024-12-15-151642_add_index_on_person_id_read_for_read_only_post_actions/down.sql
new file mode 100644
index 000000000..f7d99ed9b
--- /dev/null
+++ b/migrations/2024-12-15-151642_add_index_on_person_id_read_for_read_only_post_actions/down.sql
@@ -0,0 +1 @@
+DROP idx_post_actions_on_read_read_not_null;
diff --git a/migrations/2024-12-15-151642_add_index_on_person_id_read_for_read_only_post_actions/up.sql b/migrations/2024-12-15-151642_add_index_on_person_id_read_for_read_only_post_actions/up.sql
new file mode 100644
index 000000000..388d9595b
--- /dev/null
+++ b/migrations/2024-12-15-151642_add_index_on_person_id_read_for_read_only_post_actions/up.sql
@@ -0,0 +1,3 @@
+CREATE INDEX idx_post_actions_on_read_read_not_null ON post_actions (person_id, read)
+WHERE
+    read IS NOT NULL;