diff --git a/Gemfile.lock b/Gemfile.lock
index efcff47..372bd3a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,5 +1,5 @@
 GEM
-  remote: http://rubygems.org/
+  remote: https://rubygems.org/
   specs:
     archive-tar-minitar (0.5.2)
     builder (3.1.4)
@@ -27,7 +27,7 @@ GEM
     coderay (1.0.8)
     erubis (2.7.0)
     excon (0.16.10)
-    ffi (1.3.1)
+    ffi (1.13.1)
     fog (1.8.0)
       builder
       excon (~> 0.14)