diff --git a/Gemfile b/Gemfile
index 4b4ea2d..cbf0223 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
-source "http://rubygems.org"
+source "https://rubygems.org"
 
 gem "patron"
 gem "yajl-ruby"