diff --git a/extensions/lifecycle/tasks/LifecycleTask.js b/extensions/lifecycle/tasks/LifecycleTask.js
index 4dd936ef2..4206fc2f6 100644
--- a/extensions/lifecycle/tasks/LifecycleTask.js
+++ b/extensions/lifecycle/tasks/LifecycleTask.js
@@ -1519,7 +1519,6 @@ class LifecycleTask extends BackbeatTask {
                 .setAttribute('target.key', verToExpire.Key)
                 .setAttribute('target.version', verToExpire.VersionId)
                 .setAttribute('details.dataStoreName', storageClass || '')
-                .setAttribute('details.lastModified', verToExpire.LastModified)
                 .setAttribute('transitionTime',
                     this._lifecycleDateTime.getTransitionTimestamp(
                         { Days: rules[ncve][ncd] }, staleDate)
diff --git a/package.json b/package.json
index e31bdcba6..bb032fba9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "backbeat",
-  "version": "8.6.56",
+  "version": "8.6.57",
   "description": "Asynchronous queue and job manager",
   "main": "index.js",
   "scripts": {
diff --git a/tests/unit/lifecycle/LifecycleTask.spec.js b/tests/unit/lifecycle/LifecycleTask.spec.js
index a36680d49..473aaa252 100644
--- a/tests/unit/lifecycle/LifecycleTask.spec.js
+++ b/tests/unit/lifecycle/LifecycleTask.spec.js
@@ -1597,8 +1597,14 @@ describe('lifecycle task helper methods', () => {
                         latestEntry.getAttribute('target'), expectedTarget);
                     assert.deepStrictEqual(
                         latestEntry.getAttribute('details.dataStoreName'), expectedStorageClass);
+
+                    // `details.lastModified` must not be set for NCV expiration, as it is used to
+                    // check that the master version has not changed. This check is not relevant for
+                    // NCV (if anything, we may check that the current version is actually newer
+                    // than this one), and in particular may fail if current revision is a delete
+                    // marker
                     assert.deepStrictEqual(
-                        latestEntry.getAttribute('details.lastModified'), expectedEntries[idx].LastModified);
+                        latestEntry.getAttribute('details.lastModified'), undefined);
                 });
             });
         });