diff --git a/Gemfile.lock b/Gemfile.lock
index 23b2b38..1a2d887 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,17 +97,19 @@ GEM
     memory_profiler (0.9.11)
     method_source (0.9.0)
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     pg (1.0.0)
     puma (3.11.4)
     pygments.rb (1.2.1)
       multi_json (>= 1.0.0)
+    racc (1.5.2)
     rack (2.0.5)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)