diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index b93a48b8..cbf02fab 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -19,7 +19,8 @@ GEM
     execjs (2.7.0)
     faraday (0.10.0)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.14-x64-mingw32)
+    ffi (1.13.1)
+    ffi (1.13.1-x64-mingw32)
     forwardable-extended (2.6.0)
     gemoji (2.1.0)
     github-pages (109)
@@ -129,6 +130,8 @@ GEM
     minitest (5.10.1)
     multipart-post (2.0.0)
     net-dns (0.8.0)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
     nokogiri (1.6.8.1-x64-mingw32)
       mini_portile2 (~> 2.1.0)
     octokit (4.6.2)
@@ -153,14 +156,13 @@ GEM
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
     unicode-display_width (1.1.2)
-    wdm (0.1.1)
 
 PLATFORMS
+  ruby
   x64-mingw32
 
 DEPENDENCIES
   github-pages (= 109)
-  wdm (~> 0.1.0)
 
 BUNDLED WITH
    1.13.6