diff --git a/README.md b/README.md
index 57c5c9e8..e794e602 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 ESPurna ("spark" in Catalan) is a custom firmware for ESP8285/ESP8266 based smart switches, lights and sensors.
 It uses the Arduino Core for ESP8266 framework and a number of 3rd party libraries.
 
-[![version](https://img.shields.io/badge/version-1.13.4-DEV-brightgreen.svg)](CHANGELOG.md)
+[![version](https://img.shields.io/badge/version-1.13.4-brightgreen.svg)](CHANGELOG.md)
 [![branch](https://img.shields.io/badge/branch-dev-orange.svg)](https://github.com/xoseperez/espurna/tree/dev/)
 [![license](https://img.shields.io/github/license/xoseperez/espurna.svg)](LICENSE)
 [![travis](https://travis-ci.org/xoseperez/espurna.svg?branch=dev)](https://travis-ci.org/xoseperez/espurna)
@@ -16,6 +16,10 @@ It uses the Arduino Core for ESP8266 framework and a number of 3rd party librari
 
 ---
 
+## Collaborators
+
+Since last November, Max Prokhorov (@mcspr) is also working actively with ESPurna as a collaborator of the project. 
+
 ## Contributors
 
 **Without your help this project would not be possible**. I (@xoseperez) simply can't spend all the time I wish on ESPurna but luckly I recieve a lot of contributions, bug fixes, enhancement suggestions,... from people all around the world. I would like to thank each and every one of you. The [contributors](https://github.com/xoseperez/espurna/graphs/contributors) page shows the ones that have done a PR in the past, but I also get contributions in the issues, by email or via the [gitter ESPurna channel](https://gitter.im/tinkerman-cat/espurna), those I also want to thank.
diff --git a/code/espurna/config/version.h b/code/espurna/config/version.h
index 3a277141..7f3c064f 100644
--- a/code/espurna/config/version.h
+++ b/code/espurna/config/version.h
@@ -1,5 +1,5 @@
 #define APP_NAME                "ESPURNA"
-#define APP_VERSION             "1.13.4-DEV"
+#define APP_VERSION             "1.13.4"
 #define APP_AUTHOR              "xose.perez@gmail.com"
 #define APP_WEBSITE             "http://tinkerman.cat"
 #define CFG_VERSION             3