diff --git a/core/src/main/java/google/registry/flows/domain/DomainUpdateFlow.java b/core/src/main/java/google/registry/flows/domain/DomainUpdateFlow.java
index 78d112127..aa0b7c14b 100644
--- a/core/src/main/java/google/registry/flows/domain/DomainUpdateFlow.java
+++ b/core/src/main/java/google/registry/flows/domain/DomainUpdateFlow.java
@@ -181,7 +181,10 @@ public final class DomainUpdateFlow implements TransactionalFlow {
     DomainHistory domainHistory =
         historyBuilder.setType(DOMAIN_UPDATE).setDomain(newDomain).build();
     validateNewState(newDomain);
-    dnsQueue.addDomainRefreshTask(targetId);
+    if (newDomain.getDsData() != existingDomain.getDsData()
+        || newDomain.getNsHosts() != existingDomain.getNsHosts()) {
+      dnsQueue.addDomainRefreshTask(targetId);
+    }
     ImmutableSet.Builder<ImmutableObject> entitiesToSave = new ImmutableSet.Builder<>();
     entitiesToSave.add(newDomain, domainHistory);
     Optional<BillingEvent.OneTime> statusUpdateBillingEvent =
@@ -268,12 +271,18 @@ public final class DomainUpdateFlow implements TransactionalFlow {
             .setLastEppUpdateRegistrarId(registrarId)
             .addStatusValues(add.getStatusValues())
             .removeStatusValues(remove.getStatusValues())
-            .addNameservers(add.getNameservers().stream().collect(toImmutableSet()))
-            .removeNameservers(remove.getNameservers().stream().collect(toImmutableSet()))
             .removeContacts(remove.getContacts())
             .addContacts(add.getContacts())
             .setRegistrant(firstNonNull(change.getRegistrant(), domain.getRegistrant()))
             .setAuthInfo(firstNonNull(change.getAuthInfo(), domain.getAuthInfo()));
+
+    if (!add.getNameservers().isEmpty()) {
+      domainBuilder.addNameservers(add.getNameservers().stream().collect(toImmutableSet()));
+    }
+    if (!remove.getNameservers().isEmpty()) {
+      domainBuilder.removeNameservers(remove.getNameservers().stream().collect(toImmutableSet()));
+    }
+
     Optional<DomainUpdateSuperuserExtension> superuserExt =
         eppInput.getSingleExtension(DomainUpdateSuperuserExtension.class);
     if (superuserExt.isPresent()) {
diff --git a/core/src/test/java/google/registry/flows/domain/DomainUpdateFlowTest.java b/core/src/test/java/google/registry/flows/domain/DomainUpdateFlowTest.java
index 16054980c..fc32a6c0d 100644
--- a/core/src/test/java/google/registry/flows/domain/DomainUpdateFlowTest.java
+++ b/core/src/test/java/google/registry/flows/domain/DomainUpdateFlowTest.java
@@ -47,6 +47,7 @@ import static google.registry.testing.DomainSubject.assertAboutDomains;
 import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.HistoryEntrySubject.assertAboutHistoryEntries;
 import static google.registry.testing.TaskQueueHelper.assertDnsTasksEnqueued;
+import static google.registry.testing.TaskQueueHelper.assertNoDnsTasksEnqueued;
 import static google.registry.util.DateTimeUtils.START_OF_TIME;
 import static org.joda.money.CurrencyUnit.USD;
 import static org.junit.jupiter.api.Assertions.assertThrows;
@@ -1727,4 +1728,10 @@ class DomainUpdateFlowTest extends ResourceFlowTestCase<DomainUpdateFlow, Domain
     runFlowAsSuperuser();
     assertAboutDomains().that(reloadResourceByForeignKey()).hasNoAutorenewEndTime();
   }
+
+  @Test
+  void testDnsTaskIsNotTriggeredWhenNoDSChangeSubmitted() throws Exception {
+    setEppInput("domain_update_no_ds_change.xml");
+    assertNoDnsTasksEnqueued();
+  }
 }
diff --git a/core/src/test/resources/google/registry/flows/domain/domain_update_no_ds_change.xml b/core/src/test/resources/google/registry/flows/domain/domain_update_no_ds_change.xml
new file mode 100644
index 000000000..0981ffbc7
--- /dev/null
+++ b/core/src/test/resources/google/registry/flows/domain/domain_update_no_ds_change.xml
@@ -0,0 +1,18 @@
+<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
+  <command>
+    <update>
+      <domain:update
+       xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
+        <domain:name>example.tld</domain:name>
+        <domain:add>
+          <domain:contact type="admin">mak21</domain:contact>
+          <domain:contact type="billing">mak21</domain:contact>
+          <domain:contact type="tech">mak21</domain:contact>
+          <domain:status s="serverHold"
+              lang="en">Server hold.</domain:status>
+        </domain:add>
+      </domain:update>
+    </update>
+    <clTRID>ABC-12345</clTRID>
+  </command>
+</epp>