diff --git a/muted-tests.yml b/muted-tests.yml
index f129e56b30bc5..6a911d7608437 100644
--- a/muted-tests.yml
+++ b/muted-tests.yml
@@ -330,9 +330,6 @@ tests:
 - class: org.elasticsearch.test.rest.yaml.RcsCcsCommonYamlTestSuiteIT
   method: test {p0=search.vectors/200_dense_vector_docvalue_fields/Enable docvalue_fields parameter for dense_vector fields}
   issue: https://github.com/elastic/elasticsearch/issues/136443
-- class: org.elasticsearch.xpack.esql.heap_attack.HeapAttackIT
-  method: testManyConcat
-  issue: https://github.com/elastic/elasticsearch/issues/136728
 - class: org.elasticsearch.xpack.search.CrossClusterAsyncSearchIT
   method: testRemoteClusterOnlyCCSWithFailuresOnAllShards
   issue: https://github.com/elastic/elasticsearch/issues/136894