diff --git a/Gemfile.lock b/Gemfile.lock
index 5d25999..e41f804 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -34,7 +34,7 @@ GEM
       http_parser.rb (~> 0.6.0)
     eventmachine (1.0.8)
     execjs (2.6.0)
-    ffi (1.9.10)
+    ffi (1.9.25)
     formatador (0.2.5)
     guard (2.13.0)
       formatador (>= 0.2.4)
@@ -60,7 +60,7 @@ GEM
     guard-pow (2.0.0)
       guard (~> 2.0)
     http_parser.rb (0.6.0)
-    json (1.8.3)
+    json (2.1.0)
     kramdown (1.9.0)
     launchy (2.4.3)
       addressable (~> 2.3)
@@ -69,13 +69,13 @@ GEM
       rb-inotify (>= 0.9)
     lumberjack (1.0.9)
     method_source (0.8.2)
-    mini_portile (0.6.2)
+    mini_portile2 (2.3.0)
     multi_json (1.11.2)
     nanoc (3.8.0)
       cri (~> 2.3)
     nenv (0.2.0)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.8.4)
+      mini_portile2 (~> 2.3.0)
     notiffany (0.0.8)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -96,7 +96,7 @@ GEM
     shellany (0.0.1)
     slop (3.6.0)
     thor (0.19.1)
-    yajl-ruby (1.2.1)
+    yajl-ruby (1.2.3)
 
 PLATFORMS
   ruby
@@ -118,4 +118,4 @@ DEPENDENCIES
   rake
 
 BUNDLED WITH
-   1.10.6
+   1.16.3