diff --git a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java
index c3f137c9f..c219dd9ea 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetManager.java
@@ -83,6 +83,8 @@ import javax.xml.xpath.XPathFactory;
 import java.io.*;
 import java.math.BigInteger;
 import java.nio.file.Files;
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
 import java.util.stream.Collectors;
@@ -580,7 +582,10 @@ public class DatasetManager {
         if (datasetWizardModel.getId() != null) {
            tempDataset = apiContext.getOperationsContext().getDatabaseRepository().getDatasetDao().find(datasetWizardModel.getId());
             if (tempDataset != null) {
-                if (datasetWizardModel.getModified().getTime() != tempDataset.getModified().getTime()) {
+            	
+            	 Instant dbTime = Instant.ofEpochMilli(tempDataset.getModified().getTime()).truncatedTo(ChronoUnit.SECONDS);
+                 Instant modelTime = Instant.ofEpochMilli(datasetWizardModel.getModified().getTime()).truncatedTo(ChronoUnit.SECONDS);
+                if (modelTime.toEpochMilli() != dbTime.toEpochMilli()) {
                     throw new Exception("Dataset has been modified already by another user.");
                 }
                 sendNotification = true;