diff --git a/Gemfile.lock b/Gemfile.lock
index f1be498..9b4c9b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -117,17 +117,19 @@ GEM
     method_source (0.9.0)
     mimemagic (0.3.2)
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     msgpack (1.2.4)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pg (1.1.3)
     popper_js (1.14.5)
     public_suffix (3.0.3)
     puma (3.12.0)
+    racc (1.6.0)
     rack (2.0.5)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)