diff --git a/muted-tests.yml b/muted-tests.yml
index f7dc45228aa62..f275e2cec5267 100644
--- a/muted-tests.yml
+++ b/muted-tests.yml
@@ -579,9 +579,6 @@ tests:
 - class: org.elasticsearch.xpack.remotecluster.CrossClusterEsqlRCS2UnavailableRemotesIT
   method: testEsqlRcs2UnavailableRemoteScenarios
   issue: https://github.com/elastic/elasticsearch/issues/136493
-- class: org.elasticsearch.xpack.core.HealthApiFeatureSetUsageTests
-  method: testEqualsAndHashcode
-  issue: https://github.com/elastic/elasticsearch/issues/136648
 - class: org.elasticsearch.xpack.downsample.ILMDownsampleDisruptionIT
   method: testILMDownsampleRollingRestart
   issue: https://github.com/elastic/elasticsearch/issues/136585
diff --git a/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/HealthApiFeatureSetUsageTests.java b/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/HealthApiFeatureSetUsageTests.java
index ff66a5d8e6caf..2118bbe897f2f 100644
--- a/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/HealthApiFeatureSetUsageTests.java
+++ b/x-pack/plugin/core/src/test/java/org/elasticsearch/xpack/core/HealthApiFeatureSetUsageTests.java
@@ -37,9 +37,9 @@ protected HealthApiFeatureSetUsage createTestInstance() {
     @Override
     protected HealthApiFeatureSetUsage mutateInstance(HealthApiFeatureSetUsage instance) {
         Map<String, Object> originalStats = instance.stats();
-        Counters newStats = randomCounters();
+        Counters newStats = randomCounters(false);
         while (originalStats.equals(newStats.toMutableNestedMap())) {
-            newStats = randomCounters();
+            newStats = randomCounters(false);
         }
         return new HealthApiFeatureSetUsage(true, true, newStats);
     }
@@ -50,7 +50,11 @@ protected Writeable.Reader<HealthApiFeatureSetUsage> instanceReader() {
     }
 
     private Counters randomCounters() {
-        if (rarely()) {
+        return randomCounters(true);
+    }
+
+    private Counters randomCounters(boolean allowNull) {
+        if (allowNull && rarely()) {
             return null;
         }
         Counters counters = new Counters();