diff --git a/changelog.md b/changelog.md
index f489dac..7da966f 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2026-04-05 - 7.1.5 - fix(collection)
+ensure unique indexes are marked before upsert operations
+
+- calls unique index marking during collection updates before executing upsert logic
+- helps keep update behavior aligned with index handling already applied on inserts
+
 ## 2026-04-05 - 7.1.4 - fix(collection)
 improve index creation resilience and add collection integrity checks
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 59a89ad..f100cc9 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartdata',
-  version: '7.1.4',
+  version: '7.1.5',
   description: 'An advanced library for NoSQL data organization and manipulation using TypeScript with support for MongoDB, data validation, collections, and custom data types.'
 }
diff --git a/ts/classes.collection.ts b/ts/classes.collection.ts
index 83597b0..26e6ede 100644
--- a/ts/classes.collection.ts
+++ b/ts/classes.collection.ts
@@ -460,6 +460,7 @@ export class SmartdataCollection<T> {
   ): Promise<any> {
     await this.init();
     await this.checkDoc(dbDocArg);
+    await this.markUniqueIndexes(dbDocArg.uniqueIndexes);
     const identifiableObject = await dbDocArg.createIdentifiableObject();
     const saveableObject = await dbDocArg.createSavableObject() as any;
     const updateableObject: any = {};