diff --git a/Gemfile.lock b/Gemfile.lock
index 45fba45..99d7b64 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -32,12 +32,13 @@ GEM
       rb-inotify (>= 0.9)
       rb-kqueue (>= 0.2)
     method_source (0.8.2)
-    mini_portile (0.5.2)
+    mini_portile2 (2.6.1)
     multi_json (1.8.4)
-    nokogiri (1.6.1)
-      mini_portile (~> 0.5.0)
-    nokogiri (1.6.1-x86-mingw32)
-      mini_portile (~> 0.5.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
+    nokogiri (1.12.5-x86-mingw32)
+      racc (~> 1.4)
     polyglot (0.3.4)
     predicated (0.2.6)
     pry (0.9.12.6)
@@ -49,6 +50,7 @@ GEM
       method_source (~> 0.8)
       slop (~> 3.4)
       win32console (~> 1.3)
+    racc (1.5.2)
     rack (1.5.2)
     rack-codehighlighter (0.5.0)
       nokogiri (>= 1.4.1)