diff --git a/package.json b/package.json
index c89dfa34396d917e153fc4e94ddfb827593e11bb..5c66887dcd2acb72c219916bfb994deab3ba6c14 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ucoin",
-  "version": "0.13.5",
+  "version": "0.13.6a1",
   "engines": {
     "node": ">=4.2.0",
     "npm": ">=2.11"
diff --git a/test/integration/branches.js b/test/integration/branches.js
index be0fd7d2359e4afdb8288ec37f56204e7abfb3cf..0a4900fe23592d25ae71821f9065080f0883fadb 100644
--- a/test/integration/branches.js
+++ b/test/integration/branches.js
@@ -225,7 +225,7 @@ describe("Branches", function() {
     it('should have a 3 blocks fork window size', function() {
       return expectAnswer(rp('http://127.0.0.1:7778/node/summary', { json: true }), function(res) {
         res.should.have.property('ucoin').property('software').equal('ucoind');
-        res.should.have.property('ucoin').property('version').equal('0.13.5');
+        res.should.have.property('ucoin').property('version').equal('0.13.6a1');
         res.should.have.property('ucoin').property('forkWindowSize').equal(3);
       });
     });