diff --git a/appveyor.yml b/appveyor.yml
index d0d16269661e6b64efab64b8abf0780b3b5332c9..cef32efdd588440c6e938f0961171d5881e2f82c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -72,7 +72,7 @@ artifacts:
     name: Duniter
 
 deploy:
-  release: v0.20.0a39
+  release: v0.20.0a40
   provider: GitHub
   auth_token:
     secure: Vp/M0r0i1yhGR2nhrPWEbTiDIF6r0cmwbNDFZUzdFe5clWxPXtuC0lgIpOQI78zt
diff --git a/gui/index.html b/gui/index.html
index fd0f45f89a9ad1a8a93fd938746b5051da69dd67..0eec82b61033ad2eba1f898ed95617cbeb6c0a10 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 0.20.0a39</title>
+  <title>Duniter 0.20.0a40</title>
   <style>
     html {
       font-family: "Courier New", Courier, monospace;
diff --git a/gui/package.json b/gui/package.json
index 29cfee5508fcfb06d790b221c107768c5680d44b..8a40533fd09061afb247f01c94ebb5a0a9aa64f7 100644
--- a/gui/package.json
+++ b/gui/package.json
@@ -1,10 +1,10 @@
 {
-  "name": "v0.20.0a39",
+  "name": "v0.20.0a40",
   "main": "index.html",
   "node-main": "../sources/bin/ucoind",
   "window": {
     "icon": "duniter.png",
-    "title": "v0.20.0a39",
+    "title": "v0.20.0a40",
     "width": 800,
     "height": 800,
     "min_width": 750,
diff --git a/package.json b/package.json
index 23038999808c59751ed35d5dacf891983f9b9eae..ba9ac4b748a54f20057bc8000baf32e86f59291f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ucoin",
-  "version": "0.20.0a39",
+  "version": "0.20.0a40",
   "engines": {
     "node": ">=4.2.0",
     "npm": ">=2.11"
diff --git a/test/integration/branches.js b/test/integration/branches.js
index b3101ffc81e68cd62984178a20812ef0745ce12c..3a66a0e8bd85c0f90b0d69fc6be009fd438c77b0 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('0.20.0a39');
+        res.should.have.property('ucoin').property('version').equal('0.20.0a40');
         res.should.have.property('ucoin').property('forkWindowSize').equal(3);
       });
     });