diff --git a/Gemfile.lock b/Gemfile.lock
index 1eca576..682c99d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,17 +85,19 @@ GEM
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2020.1104)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.3)
     multi_json (1.15.0)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     padrino-helpers (0.12.9)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.12.9)
       tilt (>= 1.4.1, < 3)
     padrino-support (0.12.9)
       activesupport (>= 3.1)
+    racc (1.6.0)
     rack (1.6.13)
     rack-livereload (0.3.17)
       rack