diff --git a/.buildpacks b/.buildpacks
index b68505f..7ff5327 100644
--- a/.buildpacks
+++ b/.buildpacks
@@ -1 +1 @@
-https://github.com/heroku/heroku-buildpack-ruby.git
\ No newline at end of file
+https://github.com/heroku/heroku-buildpack-ruby.git:v334
\ No newline at end of file