diff --git a/CHANGELOG.md b/CHANGELOG.md
index b656c3b8ebb8e..9e4a26caa2b10 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -111,6 +111,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Removed
 
 ### Fixed
+- Fix flaky ResourceAwareTasksTests.testBasicTaskResourceTracking test ([#8993](https://github.com/opensearch-project/OpenSearch/pull/8993))
 
 ### Security
 
diff --git a/server/src/test/java/org/opensearch/action/admin/cluster/node/tasks/ResourceAwareTasksTests.java b/server/src/test/java/org/opensearch/action/admin/cluster/node/tasks/ResourceAwareTasksTests.java
index 96f2365412e7b..485aae433aa16 100644
--- a/server/src/test/java/org/opensearch/action/admin/cluster/node/tasks/ResourceAwareTasksTests.java
+++ b/server/src/test/java/org/opensearch/action/admin/cluster/node/tasks/ResourceAwareTasksTests.java
@@ -672,8 +672,8 @@ private void assertTasksRequestFinishedSuccessfully(NodesResponse nodesResponse,
     }
 
     private void assertMemoryUsageWithinLimits(long actual, long expected) {
-        // 5% buffer up to 200 KB to account for classloading overhead.
-        long maxOverhead = Math.min(200000, expected * 5 / 100);
+        // 5% buffer up to 500 KB to account for classloading overhead.
+        long maxOverhead = Math.min(500000, expected * 5 / 100);
         assertThat(actual, lessThanOrEqualTo(expected + maxOverhead));
     }