diff --git a/Documentation/dev-bazel.txt b/Documentation/dev-bazel.txt
index c97e4a4..036dfbf 100644
--- a/Documentation/dev-bazel.txt
+++ b/Documentation/dev-bazel.txt
@@ -342,8 +342,14 @@
 === Elasticsearch
 
 Successfully running the Elasticsearch tests requires Docker, and
-may require setting the local
-link:https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html[virtual memory,role=external,window=_blank].
+may require setting the local virtual memory on
+link:https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html[linux,role=external,window=_blank] and
+link:https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#_set_vm_max_map_count_to_at_least_262144[macOS,role=external,window=_blank].
+
+On macOS, if using link:https://docs.docker.com/docker-for-mac/[Docker Desktop,role=external,window=_blank],
+the effective memory value can be set in the Preferences, under the Advanced tab.
+The default value usually does not suffice and is causing premature container exits.
+That default is currently 2 GB and should be set to at least 5 (GB).
 
 If Docker is not available, the Elasticsearch tests will be skipped.
 Note that Bazel currently does not show
diff --git a/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java b/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java
index c692a3b..c67a842 100644
--- a/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java
+++ b/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java
@@ -51,7 +51,7 @@
       case V6_7:
         return "blacktop/elasticsearch:6.7.2";
       case V6_8:
-        return "blacktop/elasticsearch:6.8.5";
+        return "blacktop/elasticsearch:6.8.6";
       case V7_0:
         return "blacktop/elasticsearch:7.0.1";
       case V7_1:
@@ -63,7 +63,7 @@
       case V7_4:
         return "blacktop/elasticsearch:7.4.2";
       case V7_5:
-        return "blacktop/elasticsearch:7.5.0";
+        return "blacktop/elasticsearch:7.5.1";
     }
     throw new IllegalStateException("No tests for version: " + version.name());
   }
diff --git a/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html b/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html
index 46e7d32..403d9d5 100644
--- a/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html
+++ b/polygerrit-ui/app/elements/core/gr-main-header/gr-main-header_test.html
@@ -398,4 +398,4 @@
       assert.equal(element._registerText, 'Sign up');
     });
   });
-      </script>
\ No newline at end of file
+      </script>
diff --git a/tools/nongoogle.bzl b/tools/nongoogle.bzl
index e16c0a0..fa8008c 100644
--- a/tools/nongoogle.bzl
+++ b/tools/nongoogle.bzl
@@ -102,8 +102,8 @@
     # and httpasyncclient as necessary.
     maven_jar(
         name = "elasticsearch-rest-client",
-        artifact = "org.elasticsearch.client:elasticsearch-rest-client:7.5.0",
-        sha1 = "62535b6fc3a4e943e88e7640eac22e29f03a696d",
+        artifact = "org.elasticsearch.client:elasticsearch-rest-client:7.5.1",
+        sha1 = "094c155906dc94146fc5adc344ea2c676d487cf2",
     )
 
     maven_jar(