diff --git a/Gemfile.lock b/Gemfile.lock
index 270a9e1..91fecdb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -32,14 +32,15 @@ GEM
     json (2.1.0)
     jwt (1.5.6)
     mime-types (2.99.3)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.1)
     multi_json (1.13.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
     mustermann (1.0.2)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     oauth2 (1.4.0)
       faraday (>= 0.8, < 0.13)
       jwt (~> 1.0)
@@ -47,6 +48,7 @@ GEM
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
     psych (3.0.2)
+    racc (1.6.0)
     rack (2.0.3)
     rack-protection (2.0.1)
       rack