diff --git a/Gemfile.lock b/Gemfile.lock
index 1ada8d3..a163cdd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,10 +79,14 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.25.1)
+    mini_portile2 (2.6.1)
     multi_json (1.14.0)
-    nokogiri (1.5.5)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     pg (0.14.0)
     polyglot (0.3.5)
+    racc (1.6.0)
     rack (1.4.7)
     rack-cache (1.9.0)
       rack (>= 0.4)