ElasticContainer: Use 6.5.2 for V6_5 tests

Change-Id: I8520fe1f11d7bd5746c2c95eb973cd3a097f5f49
diff --git a/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java b/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java
index 31d6dc8..21436d2 100644
--- a/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java
+++ b/gerrit-elasticsearch/src/test/java/com/google/gerrit/elasticsearch/ElasticContainer.java
@@ -45,7 +45,7 @@
       case V6_4:
         return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.4.3";
       case V6_5:
-        return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.5.1";
+        return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.5.2";
       case V7_0:
         return "docker.elastic.co/elasticsearch/elasticsearch-oss:7.0.0-alpha1";
     }