diff --git a/Gemfile.lock b/Gemfile.lock
index 4943078..f147b1a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,17 +76,19 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     mocha (1.4.0)
       metaclass (~> 0.0.1)
     mustermann (1.0.2)
     netrc (0.11.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
+    racc (1.6.0)
     rack (2.0.4)
     rack-protection (2.0.1)
       rack