diff --git a/appveyor.yml b/appveyor.yml
index ed216204ad222189d269f0b4028ba370ce4a0687..04ef54e9a3fda72cb4647a18f5d728a351a5d75d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -76,7 +76,7 @@ artifacts:
     name: Duniter
 
 deploy:
-  release: v0.40.0a2
+  release: v0.40.0a3
   provider: GitHub
   auth_token:
     secure: Vp/M0r0i1yhGR2nhrPWEbTiDIF6r0cmwbNDFZUzdFe5clWxPXtuC0lgIpOQI78zt
diff --git a/gui/index.html b/gui/index.html
index 32a24b108af40a9089dfce73a77d08da60b391d4..b3aa6dde75d3a68d97d15c06f83712131403188a 100644
--- a/gui/index.html
+++ b/gui/index.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
-  <title>Duniter 0.40.0a2</title>
+  <title>Duniter 0.40.0a3</title>
   <style>
     html {
       font-family: "Courier New", Courier, monospace;
diff --git a/gui/package.json b/gui/package.json
index e837902854c9b811f3733f1586952d4a775b2f33..d30c6621c54e654a161a0cddbfdc427c12c3679c 100644
--- a/gui/package.json
+++ b/gui/package.json
@@ -1,10 +1,10 @@
 {
-  "name": "v0.40.0a2",
+  "name": "v0.40.0a3",
   "main": "index.html",
   "node-main": "../sources/bin/duniter",
   "window": {
     "icon": "duniter.png",
-    "title": "v0.40.0a2",
+    "title": "v0.40.0a3",
     "width": 800,
     "height": 800,
     "min_width": 750,
diff --git a/install.sh b/install.sh
index 54030b66e862191a9ae11bb729e194da22ce1b49..547fc97069c0b62720d28d828cf32e8a41a5a2cc 100755
--- a/install.sh
+++ b/install.sh
@@ -11,7 +11,7 @@ if [ -z "$DUNITER_DIR" ]; then
 fi
 
 latest_version() {
-  echo "v0.40.0a2"
+  echo "v0.40.0a3"
 }
 
 repo_url() {
diff --git a/package.json b/package.json
index 43bc7d5e5871e89bf2e7478636604dacb1c69ad2..3192bef75e3c3561711b873cba633c57c0b7a745 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "duniter",
-  "version": "0.40.0a2",
+  "version": "0.40.0a3",
   "engines": {
     "node": ">=4.2.0",
     "npm": ">=2.11"
diff --git a/test/integration/branches.js b/test/integration/branches.js
index 9e85afd08827ab3f775f2ed087553eed3ae411c8..ec11937b529db3d1ab6a030e7ff98a71f701b72a 100644
--- a/test/integration/branches.js
+++ b/test/integration/branches.js
@@ -44,7 +44,7 @@ describe("Branches", () => co(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('duniter').property('software').equal('duniter');
-        res.should.have.property('duniter').property('version').equal('0.40.0a2');
+        res.should.have.property('duniter').property('version').equal('0.40.0a3');
         res.should.have.property('duniter').property('forkWindowSize').equal(3);
       });
     });