diff --git a/.travis.yml b/.travis.yml
index a34cf927bed12ca5df7648f13017da7dc9f272ce..165aaa3596f7606cc4cf5439eb9943c52d083425 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,7 +49,7 @@ before_deploy:
 # Releases deployed on GitHub
 deploy:
   provider: releases
-#  prerelease: true
+  prerelease: true
   skip_cleanup: true
   api_key:
     secure: feyz5YmzYj6g6ZJKAv7u3pp9j9OY6oL4Pcx8mkha25BT1kEIu7lzvkZu4mJAIDjCxJjEkce3fNGXhRICqoMhRy/FK5dUUTpmP3KoMLNNJboO+MhDqjPEb6OYyafikSWnm0BszPL38FzSYMdmvNZ6WirOyVfrdzVPgU6MG0D99w8=
diff --git a/package.json b/package.json
index 64f6336f7feb9c5ca2fd6a36861922e7feae8913..75ebc6879741228edce04d1ccfa5d9f9d27a9ee1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ucoin",
-  "version": "0.20.0a1",
+  "version": "0.20.0a2",
   "engines": {
     "node": ">=4.2.0",
     "npm": ">=2.11"
diff --git a/test/integration/branches.js b/test/integration/branches.js
index 2ad183db904ec56c1d789dc6da455cabe35d1dde..57a26ceea71c3c14d90cd87c4d987d1d0ae01c4b 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('0.20.0a1');
+        res.should.have.property('ucoin').property('version').equal('0.20.0a2');
         res.should.have.property('ucoin').property('forkWindowSize').equal(3);
       });
     });