diff --git a/.buildpacks b/.buildpacks
index c3c91f1aac5..f5cf87bf7ed 100644
--- a/.buildpacks
+++ b/.buildpacks
@@ -1,2 +1,2 @@
 https://github.com/heroku/heroku-buildpack-nodejs.git#v315
-https://github.com/pkgr/heroku-buildpack-ruby.git#v327-1
+https://github.com/pkgr/heroku-buildpack-ruby.git#v356-1