diff --git a/build/allowedValues.json b/build/allowedValues.json
index 6996528a..d4cf9497 100644
--- a/build/allowedValues.json
+++ b/build/allowedValues.json
@@ -1,13 +1,14 @@
 {
   "versions": [
-    "5.6.14",
+    "5.6.15",
     "6.0.1",
     "6.1.3",
     "6.2.4",
     "6.3.2",
     "6.4.3",
     "6.5.4",
-    "6.6.0"
+    "6.6.0",
+    "6.6.1"
   ],
   "numberOfDataNodes" : 50,
   "numberOfClientNodes" : 20,
diff --git a/src/createUiDefinition.json b/src/createUiDefinition.json
index ef38960d..51d20e75 100644
--- a/src/createUiDefinition.json
+++ b/src/createUiDefinition.json
@@ -54,13 +54,13 @@
             "name": "esVersion",
             "type": "Microsoft.Common.DropDown",
             "label": "Elasticsearch version",
-            "defaultValue": "v6.6.0",
+            "defaultValue": "v6.6.1",
             "toolTip": "Choose a version of Elasticsearch.",
             "constraints": {
               "allowedValues": [
                 {
-                  "label": "v5.6.14",
-                  "value": "5.6.14"
+                  "label": "v5.6.15",
+                  "value": "5.6.15"
                 },
                 {
                   "label": "v6.0.1",
@@ -89,6 +89,10 @@
                 {
                   "label": "v6.6.0",
                   "value": "6.6.0"
+                },
+                {
+                  "label": "v6.6.1",
+                  "value": "6.6.1"
                 }
               ]
             }
diff --git a/src/mainTemplate.json b/src/mainTemplate.json
index bd64b9ea..057b9428 100644
--- a/src/mainTemplate.json
+++ b/src/mainTemplate.json
@@ -21,16 +21,17 @@
     },
     "esVersion": {
       "type": "string",
-      "defaultValue": "6.6.0",
+      "defaultValue": "6.6.1",
       "allowedValues": [
-        "5.6.14",
+        "5.6.15",
         "6.0.1",
         "6.1.3",
         "6.2.4",
         "6.3.2",
         "6.4.3",
         "6.5.4",
-        "6.6.0"
+        "6.6.0",
+        "6.6.1"
       ],
       "metadata": {
         "description": "Elasticsearch version to install"