diff --git a/package.json b/package.json
index a4d2925f..1067b5e2 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "abbrev": "^1.0.5",
     "conventional-changelog": "0.0.11",
     "error-first-handler": "^1.0.1",
+    "git-head": "^1.0.0",
     "github": "^0.2.3",
     "github-url-from-git": "^1.4.0",
     "ini": "^1.3.2",
diff --git a/src/post.js b/src/post.js
index b97376e0..b166f934 100644
--- a/src/post.js
+++ b/src/post.js
@@ -1,10 +1,10 @@
 'use strict'
 
-var exec = require('child_process').exec
 var readFile = require('fs').readFileSync
 var url = require('url')
 
 var changelog = require('conventional-changelog')
+var gitHead = require('git-head')
 var GitHubApi = require('github')
 var parseSlug = require('parse-github-repo-url')
 var parseUrl = require('github-url-from-git')
@@ -31,7 +31,7 @@ module.exports = function (options, cb) {
     repository: parseUrl(repository),
     file: false
   }, efh(cb)(function (log) {
-    exec('git rev-parse HEAD', efh(cb)(function (hash) {
+    gitHead(efh(cb)(function (hash) {
       var ghRepo = parseSlug(repository)
       var release = {
         owner: ghRepo[0],