diff --git a/package.json b/package.json
index 6d21af072..e2d7ade2e 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
       "pattern": "specified in test/unit/coverage.js"
     },
     "supported_es_branches": [
-      "1.4",
+      "1.5",
       "1.3",
       "1.2",
       "1.1",
@@ -31,7 +31,7 @@
       "master",
       "1.x"
     ],
-    "default_api_branch": "1.4"
+    "default_api_branch": "1.5"
   },
   "devDependencies": {
     "aliasify": "~1.2.4",
diff --git a/src/lib/apis/browser_index.js b/src/lib/apis/browser_index.js
index 4e6c0bc66..25a5eb61a 100644
--- a/src/lib/apis/browser_index.js
+++ b/src/lib/apis/browser_index.js
@@ -1,5 +1,5 @@
 module.exports = {
+  '1.5': require('./1_5'),
   '1.4': require('./1_4'),
-  '1.3': require('./1_3'),
-  '1.2': require('./1_2')
+  '1.3': require('./1_3')
 };
diff --git a/src/lib/apis/index.js b/src/lib/apis/index.js
index b9c11eceb..6f0ce5f55 100644
--- a/src/lib/apis/index.js
+++ b/src/lib/apis/index.js
@@ -1,6 +1,7 @@
 module.exports = {
   'master': require('./master'),
   '1.x': require('./1_x'),
+  '1.5': require('./1_5'),
   '1.4': require('./1_4'),
   '1.3': require('./1_3'),
   '1.2': require('./1_2'),
diff --git a/src/lib/client.js b/src/lib/client.js
index e5f50a5f6..6d1556d4d 100755
--- a/src/lib/client.js
+++ b/src/lib/client.js
@@ -63,7 +63,7 @@ function Client(config) {
     delete this._namespaces;
   }
 
-  EsApiClient.prototype = _.funcEnum(config, 'apiVersion', Client.apis, '1.4');
+  EsApiClient.prototype = _.funcEnum(config, 'apiVersion', Client.apis, '1.5');
   if (!config.sniffEndpoint && EsApiClient.prototype === Client.apis['0.90']) {
     config.sniffEndpoint = '/_cluster/nodes';
   }