diff --git a/stable/elasticsearch/ci/extrainitcontainers-values.yaml b/stable/elasticsearch/ci/extrainitcontainers-values.yaml
index 9ba5471aed..90eff0613b 100644
--- a/stable/elasticsearch/ci/extrainitcontainers-values.yaml
+++ b/stable/elasticsearch/ci/extrainitcontainers-values.yaml
@@ -1,9 +1,9 @@
 extraInitContainers: |
   - name: "plugin-install-ingest-attachment"
-    image: "docker.elastic.co/elasticsearch/elasticsearch-oss:6.4.0"
+    image: "docker.elastic.co/elasticsearch/elasticsearch-oss:6.6.1"
     command: ["/bin/bash"]
     args: ["-c", "yes | /usr/share/elasticsearch/bin/elasticsearch-plugin install ingest-attachment"]
   - name: "plugin-install-mapper-size"
-    image: "docker.elastic.co/elasticsearch/elasticsearch-oss:6.4.0"
+    image: "docker.elastic.co/elasticsearch/elasticsearch-oss:6.6.1"
     command: ["/bin/bash"]
     args: ["-c", "yes | /usr/share/elasticsearch/bin/elasticsearch-plugin install mapper-size"]