diff --git a/x-pack/plugin/autoscaling/src/internalClusterTest/java/org/elasticsearch/xpack/autoscaling/storage/AutoscalingStorageIntegTestCase.java b/x-pack/plugin/autoscaling/src/internalClusterTest/java/org/elasticsearch/xpack/autoscaling/storage/AutoscalingStorageIntegTestCase.java
index 01b78bb0063c1..4306fd7cef790 100644
--- a/x-pack/plugin/autoscaling/src/internalClusterTest/java/org/elasticsearch/xpack/autoscaling/storage/AutoscalingStorageIntegTestCase.java
+++ b/x-pack/plugin/autoscaling/src/internalClusterTest/java/org/elasticsearch/xpack/autoscaling/storage/AutoscalingStorageIntegTestCase.java
@@ -15,6 +15,7 @@
 import org.elasticsearch.cluster.routing.allocation.decider.DiskThresholdDecider;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.datastreams.DataStreamsPlugin;
+import org.elasticsearch.index.engine.ThreadPoolMergeExecutorService;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.xpack.autoscaling.LocalStateAutoscaling;
 import org.elasticsearch.xpack.autoscaling.action.GetAutoscalingCapacityAction;
@@ -41,7 +42,10 @@ protected Settings nodeSettings(final int nodeOrdinal, final Settings otherSetti
             .put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_HIGH_DISK_WATERMARK_SETTING.getKey(), HIGH_WATERMARK_BYTES + "b")
             .put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_DISK_FLOOD_STAGE_WATERMARK_SETTING.getKey(), "0b")
             .put(DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_REROUTE_INTERVAL_SETTING.getKey(), "0ms")
-            .put(DiskThresholdDecider.ENABLE_FOR_SINGLE_DATA_NODE.getKey(), "true");
+            .put(DiskThresholdDecider.ENABLE_FOR_SINGLE_DATA_NODE.getKey(), "true")
+            // the periodicity for the checker for the available disk space as well as the merge tasks' aborting status
+            // the default of 5 seconds might timeout some tests
+            .put(ThreadPoolMergeExecutorService.INDICES_MERGE_DISK_CHECK_INTERVAL_SETTING.getKey(), "100ms");
         return builder.build();
     }