diff --git a/solr/CHANGES.txt b/solr/CHANGES.txt
index 0d3ec9d001ff..84aaedaf07c6 100644
--- a/solr/CHANGES.txt
+++ b/solr/CHANGES.txt
@@ -22,7 +22,8 @@ Optimizations
 
 Bug Fixes
 ---------------------
-(No changes)
+* SOLR-15311: Support async parameter in MODIFYCOLLECTION
+  (Nazerke Seidan, Christine Poerschke, David Smiley)
 
 Other Changes
 ---------------------
diff --git a/solr/core/src/java/org/apache/solr/cloud/api/collections/OverseerCollectionMessageHandler.java b/solr/core/src/java/org/apache/solr/cloud/api/collections/OverseerCollectionMessageHandler.java
index 2ba3b2c071cd..4222b00fb8f6 100644
--- a/solr/core/src/java/org/apache/solr/cloud/api/collections/OverseerCollectionMessageHandler.java
+++ b/solr/core/src/java/org/apache/solr/cloud/api/collections/OverseerCollectionMessageHandler.java
@@ -71,6 +71,7 @@
 import org.apache.solr.common.cloud.ZkStateReader;
 import org.apache.solr.common.params.CollectionAdminParams;
 import org.apache.solr.common.params.CollectionParams.CollectionAction;
+import org.apache.solr.common.params.CommonAdminParams;
 import org.apache.solr.common.params.CoreAdminParams;
 import org.apache.solr.common.params.CoreAdminParams.CoreAdminAction;
 import org.apache.solr.common.params.ModifiableSolrParams;
@@ -654,6 +655,7 @@ void modifyCollection(ClusterState clusterState, ZkNodeProps message, @SuppressW
 
         if (!updateKey.equals(ZkStateReader.COLLECTION_PROP)
             && !updateKey.equals(Overseer.QUEUE_OPERATION)
+            && !updateKey.equals(CommonAdminParams.ASYNC)
             && updateEntry.getValue() != null // handled below in a separate conditional
             && !updateEntry.getValue().equals(collection.get(updateKey))) {
           areChangesVisible = false;
diff --git a/solr/core/src/test/org/apache/solr/cloud/OverseerModifyCollectionTest.java b/solr/core/src/test/org/apache/solr/cloud/OverseerModifyCollectionTest.java
index ed113cd4cdd8..d8252711057b 100644
--- a/solr/core/src/test/org/apache/solr/cloud/OverseerModifyCollectionTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/OverseerModifyCollectionTest.java
@@ -17,20 +17,17 @@
 
 package org.apache.solr.cloud;
 
+import java.util.Collections;
 import java.util.Map;
 
 import org.apache.solr.client.solrj.request.CollectionAdminRequest;
-import org.apache.solr.client.solrj.request.GenericSolrRequest;
+import org.apache.solr.client.solrj.response.RequestStatusState;
 import org.apache.solr.common.cloud.ZkStateReader;
-import org.apache.solr.common.params.ModifiableSolrParams;
 import org.apache.solr.common.util.Utils;
 import org.apache.zookeeper.KeeperException;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
-import static org.apache.solr.client.solrj.SolrRequest.METHOD.POST;
-import static org.apache.solr.common.params.CommonParams.COLLECTIONS_HANDLER_PATH;
-
 public class OverseerModifyCollectionTest extends SolrCloudTestCase {
 
   @BeforeClass
@@ -49,22 +46,19 @@ public void testModifyColl() throws Exception {
     CollectionAdminRequest.createCollection(collName, "conf1", 1, 2)
         .process(cluster.getSolrClient());
 
-    // TODO create a modifyCollection() method on CollectionAdminRequest
-    ModifiableSolrParams p1 = new ModifiableSolrParams();
-    p1.add("collection", collName);
-    p1.add("action", "MODIFYCOLLECTION");
-    p1.add("collection.configName", "conf2");
-    cluster.getSolrClient().request(new GenericSolrRequest(POST, COLLECTIONS_HANDLER_PATH, p1));
+    // Modify configSet
+    RequestStatusState requestStatusState = CollectionAdminRequest.modifyCollection(collName,
+            Collections.singletonMap("collection.configName", "conf2"))
+            .processAndWait(cluster.getSolrClient(), DEFAULT_TIMEOUT);
+    assertEquals(requestStatusState, RequestStatusState.COMPLETED);
 
     assertEquals("conf2", getConfigNameFromZk(collName));
     
     //Try an invalid config name
-    ModifiableSolrParams p2 = new ModifiableSolrParams();
-    p2.add("collection", collName);
-    p2.add("action", "MODIFYCOLLECTION");
-    p2.add("collection.configName", "notARealConfigName");
     Exception e = expectThrows(Exception.class, () -> {
-      cluster.getSolrClient().request(new GenericSolrRequest(POST, COLLECTIONS_HANDLER_PATH, p2));
+      CollectionAdminRequest.modifyCollection(collName,
+              Collections.singletonMap("collection.configName", "notARealConfigName")
+      ).process(cluster.getSolrClient());
     });
 
     assertTrue(e.getMessage(), e.getMessage().contains("Can not find the specified config set"));
diff --git a/solr/solr-ref-guide/src/collection-management.adoc b/solr/solr-ref-guide/src/collection-management.adoc
index 1b2b55ee35c4..c0ddbe9e22a2 100644
--- a/solr/solr-ref-guide/src/collection-management.adoc
+++ b/solr/solr-ref-guide/src/collection-management.adoc
@@ -260,6 +260,7 @@ The attributes that can be modified are:
 * policy
 * withCollection
 * readOnly
+* async
 * other custom properties that use a `property.` prefix
 
 See the <<create,CREATE action>> section above for details on these attributes.