diff --git a/Gemfile.lock b/Gemfile.lock
index 285accf123fd99b5b8916026c657b5dfb3c34504..7f078db9986336fb783e4650b6913c23eeb0ac0a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,5 +1,5 @@
 GEM
-  remote: http://rubygems.org/
+  remote: https://rubygems.org/
   specs:
     diffy (3.2.0)
     domain_name (0.5.20170223)
@@ -21,6 +21,7 @@ GEM
       faraday_middleware (~> 0.10, >= 0.10.0)
     multipart-post (2.0.0)
     net-ssh (4.1.0)
+    ruby-ip (0.9.3)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.2)
@@ -34,3 +35,4 @@ DEPENDENCIES
   hashdiff
   mediawiki_api
   net-ssh
+  ruby-ip