diff --git a/muted-tests.yml b/muted-tests.yml
index 605f858206e07..83ffb778a19f9 100644
--- a/muted-tests.yml
+++ b/muted-tests.yml
@@ -158,9 +158,6 @@ tests:
 - class: org.elasticsearch.packaging.test.DockerTests
   method: test140CgroupOsStatsAreAvailable
   issue: https://github.com/elastic/elasticsearch/issues/120914
-- class: org.elasticsearch.xpack.security.FileSettingsRoleMappingsRestartIT
-  method: testReservedStatePersistsOnRestart
-  issue: https://github.com/elastic/elasticsearch/issues/120923
 - class: org.elasticsearch.packaging.test.DockerTests
   method: test070BindMountCustomPathConfAndJvmOptions
   issue: https://github.com/elastic/elasticsearch/issues/120910
@@ -173,9 +170,6 @@ tests:
 - class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
   method: test {p0=nodes.stats/11_indices_metrics/indices mappings exact count test for indices level}
   issue: https://github.com/elastic/elasticsearch/issues/120950
-- class: org.elasticsearch.xpack.security.FileSettingsRoleMappingsRestartIT
-  method: testFileSettingsReprocessedOnRestartWithoutVersionChange
-  issue: https://github.com/elastic/elasticsearch/issues/120964
 - class: org.elasticsearch.xpack.ml.integration.PyTorchModelIT
   issue: https://github.com/elastic/elasticsearch/issues/121165
 - class: org.elasticsearch.xpack.security.authc.ldap.ActiveDirectorySessionFactoryTests
diff --git a/x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/FileSettingsRoleMappingsRestartIT.java b/x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/FileSettingsRoleMappingsRestartIT.java
index c991316ffc2b9..e5707d7d16faa 100644
--- a/x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/FileSettingsRoleMappingsRestartIT.java
+++ b/x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/FileSettingsRoleMappingsRestartIT.java
@@ -113,7 +113,8 @@ public void resetVersion() {
     public void testReservedStatePersistsOnRestart() throws Exception {
         internalCluster().setBootstrapMasterNodeIndex(0);
 
-        final String masterNode = internalCluster().getMasterName();
+        final String masterNode = internalCluster().startMasterOnlyNode();
+        awaitMasterNode();
         var savedClusterState = setupClusterStateListener(masterNode, "everyone_kibana_alone");
 
         awaitFileSettingsWatcher();
@@ -193,7 +194,8 @@ public void testReservedStatePersistsOnRestart() throws Exception {
     public void testFileSettingsReprocessedOnRestartWithoutVersionChange() throws Exception {
         internalCluster().setBootstrapMasterNodeIndex(0);
 
-        final String masterNode = internalCluster().getMasterName();
+        final String masterNode = internalCluster().startMasterOnlyNode();
+        awaitMasterNode();
 
         Tuple<CountDownLatch, AtomicLong> savedClusterState = setupClusterStateListener(masterNode, "everyone_kibana_alone");
         awaitFileSettingsWatcher();