diff --git a/Gemfile.lock b/Gemfile.lock
index e6bfbcc..a1a3e8d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,16 +51,18 @@ GEM
       treetop (~> 1.4.8)
     method_source (0.8.2)
     mime-types (1.25.1)
-    mini_portile (0.5.2)
+    mini_portile2 (2.5.1)
     minitest (4.7.5)
     multi_json (1.9.0)
-    nokogiri (1.6.1)
-      mini_portile (~> 0.5.0)
+    nokogiri (1.11.5)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     polyglot (0.3.4)
     pry (0.9.12.6)
       coderay (~> 1.0)
       method_source (~> 0.8)
       slop (~> 3.4)
+    racc (1.5.2)
     rack (1.5.2)
     rack-test (0.6.2)
       rack (>= 1.0)