diff --git a/go.mod b/go.mod
index a3cfb677db..9e6f4c529a 100644
--- a/go.mod
+++ b/go.mod
@@ -60,7 +60,7 @@ require (
 	github.com/jinzhu/copier v0.3.5
 	github.com/kubernetes-csi/csi-lib-utils v0.6.1
 	github.com/longhorn/backing-image-manager v1.6.4
-	github.com/longhorn/backupstore v0.0.0-20250215022153-7ee3a979f2a9
+	github.com/longhorn/backupstore v0.0.0-20250227220202-651bd33886fe
 	github.com/longhorn/go-common-libs v0.0.0-20250215052214-151615b29f8e
 	github.com/longhorn/go-iscsi-helper v0.0.0-20250111093313-7e1930499625
 	github.com/longhorn/go-spdk-helper v0.0.0-20240308030201-9b252d6f7250
diff --git a/go.sum b/go.sum
index 815c8f7c00..d67e3dde31 100644
--- a/go.sum
+++ b/go.sum
@@ -1048,8 +1048,8 @@ github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de h1:9TO3cAIGXtEhn
 github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de/go.mod h1:zAbeS9B/r2mtpb6U+EI2rYA5OAXxsYw6wTamcNW+zcE=
 github.com/longhorn/backing-image-manager v1.6.4 h1:S2t8+8gk8zuNiI11A6eIPlU81swjopbNjv8XEcTvFoI=
 github.com/longhorn/backing-image-manager v1.6.4/go.mod h1:9HIc5SxWnWmhoikYm8Bt0GhVEQKNgz7alsppeAk4haw=
-github.com/longhorn/backupstore v0.0.0-20250215022153-7ee3a979f2a9 h1:TDLyWqxfdLOyniw3lQy9oFcX6hVaURRSSmbNfmKGXEY=
-github.com/longhorn/backupstore v0.0.0-20250215022153-7ee3a979f2a9/go.mod h1:68UurOCxyLbFS/490FPo+q2G/7iJXfPwI33eNm1m3D8=
+github.com/longhorn/backupstore v0.0.0-20250227220202-651bd33886fe h1:94FXqrJeaXrwuQNk4GLz0SSaMKT90Zcu1Uhu0qVb5EM=
+github.com/longhorn/backupstore v0.0.0-20250227220202-651bd33886fe/go.mod h1:68UurOCxyLbFS/490FPo+q2G/7iJXfPwI33eNm1m3D8=
 github.com/longhorn/go-common-libs v0.0.0-20250215052214-151615b29f8e h1:QxJaa0Jo3yGWXrxk317mH1KJwgz7SwDldH1ec/yNEss=
 github.com/longhorn/go-common-libs v0.0.0-20250215052214-151615b29f8e/go.mod h1:qDoXeH6jrSofJyr3ubwwhlptIKHHsQwTsm5TpNTs1B0=
 github.com/longhorn/go-iscsi-helper v0.0.0-20250111093313-7e1930499625 h1:d39A3041RyFve26tIuKUuzrh2CkBY970xlGIXgMA998=
diff --git a/vendor/github.com/longhorn/backupstore/backupstore.go b/vendor/github.com/longhorn/backupstore/backupstore.go
index 9ff25c0961..e4f54bc0aa 100644
--- a/vendor/github.com/longhorn/backupstore/backupstore.go
+++ b/vendor/github.com/longhorn/backupstore/backupstore.go
@@ -56,6 +56,11 @@ type Backup struct {
 	SingleFile BackupFile     `json:",omitempty"`
 }
 
+type LastBackupInfo struct {
+	Name              string
+	SnapshotCreatedAt string
+}
+
 var (
 	backupstoreBase = "backupstore"
 )
diff --git a/vendor/github.com/longhorn/backupstore/deltablock.go b/vendor/github.com/longhorn/backupstore/deltablock.go
index 6c14ba49d1..6b8a94a55c 100644
--- a/vendor/github.com/longhorn/backupstore/deltablock.go
+++ b/vendor/github.com/longhorn/backupstore/deltablock.go
@@ -1196,12 +1196,16 @@ func checkBlockReferenceCount(blockInfos map[string]*BlockInfo, backup *Backup,
 	}
 }
 
+func copyLastBackupInfo(backup *Backup, lastBackup *LastBackupInfo) {
+	lastBackup.Name = backup.Name
+	lastBackup.SnapshotCreatedAt = backup.SnapshotCreatedAt
+}
+
 // getLatestBackup replace lastBackup object if the found
 // backup.SnapshotCreatedAt time is greater than the lastBackup
-func getLatestBackup(backup *Backup, lastBackup *Backup) error {
+func getLatestBackup(backup *Backup, lastBackup *LastBackupInfo) error {
 	if lastBackup.SnapshotCreatedAt == "" {
-		// FIXME - go lint points out that this copies a potentially locked sync.mutex
-		*lastBackup = *backup // nolint:govet
+		copyLastBackupInfo(backup, lastBackup)
 		return nil
 	}
 
@@ -1216,8 +1220,7 @@ func getLatestBackup(backup *Backup, lastBackup *Backup) error {
 	}
 
 	if backupTime.After(lastBackupTime) {
-		// FIXME - go lint points out that this copies a potentially locked sync.mutex
-		*lastBackup = *backup // nolint:govet
+		copyLastBackupInfo(backup, lastBackup)
 	}
 
 	return nil
@@ -1299,7 +1302,7 @@ func DeleteDeltaBlockBackup(backupURL string) error {
 		}
 	}
 
-	lastBackup := &Backup{}
+	lastBackup := &LastBackupInfo{}
 	for _, name := range backupNames {
 		log := log.WithField("backup", name)
 		backup, err := loadBackup(bsDriver, name, volumeName)
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 448f6cc343..acecc71dc0 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -231,7 +231,7 @@ github.com/longhorn/backing-image-manager/pkg/meta
 github.com/longhorn/backing-image-manager/pkg/rpc
 github.com/longhorn/backing-image-manager/pkg/types
 github.com/longhorn/backing-image-manager/pkg/util
-# github.com/longhorn/backupstore v0.0.0-20250215022153-7ee3a979f2a9
+# github.com/longhorn/backupstore v0.0.0-20250227220202-651bd33886fe
 ## explicit; go 1.22.7
 github.com/longhorn/backupstore
 github.com/longhorn/backupstore/backupbackingimage