diff --git a/Gemfile.lock b/Gemfile.lock
index 0672f0a..8dae9de 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,10 +78,13 @@ GEM
       treetop (~> 1.4.8)
     method_source (0.8)
     mime-types (1.19)
+    mini_portile2 (2.5.1)
     multi_json (1.3.6)
     multi_xml (0.5.1)
     mysql2 (0.3.11)
-    nokogiri (1.5.5)
+    nokogiri (1.11.4)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     orm_adapter (0.4.0)
     paperclip (3.3.0)
       activemodel (>= 3.0.0)
@@ -98,6 +101,7 @@ GEM
       slop (~> 3.3.1)
     pry-rails (0.1.6)
       pry
+    racc (1.5.2)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)