diff --git a/Gemfile.lock b/Gemfile.lock
index ee83b68..2980338 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,17 +95,19 @@ GEM
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.4.3)
-    mini_portile (0.6.2)
+    mini_portile2 (2.8.0)
     minitest (5.5.1)
     multi_json (1.10.1)
     multipart-post (1.2.0)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     octokit (3.2.0)
       sawyer (~> 0.5.3)
     phantomjs (1.9.7.1)
     puma (2.8.2)
       rack (>= 1.1, < 2.0)
+    racc (1.6.0)
     rack (1.5.2)
     rack-protection (1.5.3)
       rack