diff --git a/Gemfile.lock b/Gemfile.lock
index 3ebdb4a..43cfde8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
     link-header-parser (0.3.0)
       absolutely (~> 3.1)
     method_source (1.0.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.1)
     minitest (5.14.0)
     minitest-hooks (1.5.0)
       minitest (> 5.3)
@@ -58,8 +58,9 @@ GEM
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.5)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     oauth2 (1.4.4)
       faraday (>= 0.8, < 2.0)
       jwt (>= 1.0, < 3.0)
@@ -72,6 +73,7 @@ GEM
     public_suffix (4.0.4)
     puma (4.3.3)
       nio4r (~> 2.0)
+    racc (1.5.2)
     rack (2.2.2)
     rack-protection (2.0.8.1)
       rack