diff --git a/Gemfile.lock b/Gemfile.lock
index 9c041a0..e31f759 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,16 +64,18 @@ GEM
       rb-inotify (>= 0.9)
       rb-kqueue (>= 0.2)
     maruku (0.7.0)
-    mini_portile (0.6.0)
+    mini_portile2 (2.8.0)
     minitest (5.3.4)
-    nokogiri (1.6.2.1)
-      mini_portile (= 0.6.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     parslet (1.5.0)
       blankslate (~> 2.0)
     posix-spawn (0.3.8)
     pygments.rb (0.5.4)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
+    racc (1.6.0)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)