diff --git a/Gemfile b/Gemfile
index d65e2a6..fa75df1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,3 @@
-source 'http://rubygems.org'
+source 'https://rubygems.org'
 
 gemspec
diff --git a/Gemfile.lock b/Gemfile.lock
index 16d92d7..c52cc71 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,7 +5,7 @@ PATH
       require (= 0.2.1)
 
 GEM
-  remote: http://rubygems.org/
+  remote: https://rubygems.org/
   specs:
     require (0.2.1)
 
@@ -14,4 +14,6 @@ PLATFORMS
 
 DEPENDENCIES
   acts_as_archive!
-  require (= 0.2.1)
+
+BUNDLED WITH
+   1.15.3