diff --git a/gulpfile.js b/gulpfile.js
index 0a027dac..c263f85a 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -164,7 +164,7 @@ var gitDeployMergeMaster = function(done) {
 
 var gitDeployPushOrigin = function(done) {
   execSync('git commit -am "rebuild for prod"; ' +
-    'git push origin gh-pages && ' +
+    'git push origin gh-pages --force && ' +
     'git branch -f trunk gh-pages && ' +
     'git checkout master'
   );