diff --git a/Gemfile b/Gemfile
index c5f5d1a..bd0a53a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,6 +25,9 @@ gem 'grape-swagger'
 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