diff --git a/Gemfile.lock b/Gemfile.lock
index 91728f4..44ff697 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,7 +18,7 @@ GEM
     execjs (2.7.0)
     faraday (0.12.1)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.18)
+    ffi (~> 1.9.24)
     forwardable-extended (2.6.0)
     gemoji (3.0.0)
     github-pages (139)
@@ -158,14 +158,14 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.2.0)
+    mini_portile2 (2.3.0)
     minima (2.1.1)
       jekyll (~> 3.3)
     minitest (5.10.1)
     multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.8.0)
-      mini_portile2 (~> 2.2.0)
+    nokogiri (1.8.2)
+      mini_portile2 (~> 2.3.0)
     octokit (4.7.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.14.0)
@@ -201,4 +201,4 @@ DEPENDENCIES
   test-unit
 
 BUNDLED WITH
-   1.14.6
+   1.16.1