diff --git a/History.md b/History.md
index dcbcc9e5..feff5916 100644
--- a/History.md
+++ b/History.md
@@ -1,4 +1,10 @@
 
+0.5.1 / 2015-06-23
+==================
+
+  * added safety check for channels.
+  * fix counting deleted users
+
 0.5.0 / 2015-05-07
 ==================
 
diff --git a/Readme.md b/Readme.md
index ee219fbf..44038c0e 100644
--- a/Readme.md
+++ b/Readme.md
@@ -19,7 +19,7 @@ Read more about the [motivations and history](http://rauchg.com/slackin) behind
 
 ### Server
 
-[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/rauchg/slackin/tree/0.5.0)
+[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/rauchg/slackin/tree/0.5.1)
 
 Or install it and launch it on your server:
 
diff --git a/package.json b/package.json
index 9592814f..3201796f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "slackin",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "description": "",
   "dependencies": {
     "babel": "4.7.1",