diff --git a/Gemfile.lock b/Gemfile.lock
index 7d8f616..c3ed72f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,10 +95,14 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.19)
+    mini_portile2 (2.6.1)
     multi_json (1.3.6)
-    nokogiri (1.5.5)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     pg (0.14.1)
     polyglot (0.3.3)
+    racc (1.5.2)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)