diff --git a/Gemfile.lock b/Gemfile.lock
index aed68c2..a417be6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,18 +46,20 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.0)
     multi_xml (0.6.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pg (1.2.2)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (4.0.3)
+    racc (1.6.0)
     rack (2.2.3)
     rack-protection (2.0.8.1)
       rack