diff --git a/tools/migrations/20251222142959_emailNotifications_index_update.mjs b/tools/migrations/20251222142959_emailNotifications_index_update.mjs
new file mode 100644
index 0000000000..ad4cb8dfbd
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+++ b/tools/migrations/20251222142959_emailNotifications_index_update.mjs
@@ -0,0 +1,52 @@
+/* eslint-disable no-unused-vars */
+
+import Helpers from './lib/helpers.mjs'
+import { getCollectionInternal } from './lib/mongodb.mjs'
+
+const tags = ['server-pro', 'saas']
+
+const oldIndexes = [
+  {
+    key: {
+      user_id: 1,
+      recipient_id: 1,
+      project_id: 1,
+    },
+    name: 'user_id_1_recipient_id_1_project_id_1',
+  },
+  {
+    key: {
+      recipient_id: 1,
+    },
+    name: 'recipientId_1',
+    expireAfterSeconds: 60 * 60 * 24, // expire after 24 hours
+  },
+]
+
+const newIndexes = [
+  {
+    key: {
+      project_id: 1,
+    },
+    name: 'project_id_1',
+    expireAfterSeconds: 60 * 60 * 24, // expire after 24 hours
+  },
+]
+
+const migrate = async client => {
+  const emailNotifications = await getCollectionInternal('emailNotifications')
+  await Helpers.dropIndexesFromCollection(emailNotifications, oldIndexes)
+  await Helpers.addIndexesToCollection(emailNotifications, newIndexes)
+}
+
+const rollback = async client => {
+  const emailNotifications = await getCollectionInternal('emailNotifications')
+  await Helpers.dropIndexesFromCollection(emailNotifications, newIndexes)
+  await Helpers.addIndexesToCollection(emailNotifications, oldIndexes)
+}
+
+export default {
+  tags,
+  migrate,
+  rollback,
+}