diff --git a/Gemfile b/Gemfile
index 973c912..d516827 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,6 +26,9 @@ gem 'grape_logging'
 gem 'rack-cors'
 gem 'rack-contrib'
 
+gem 'therubyracer'
+gem 'execjs'
+
 #gem 'grape-swagger-rails'
 
 # FIXME list here all actual dependencies (i.e. the ones in debian/control),
--
libgit2 0.21.2