diff --git a/Gemfile.lock b/Gemfile.lock
index bfac3d9..acaaf64 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -115,7 +115,7 @@ GEM
     method_source (1.0.0)
     mimemagic (0.3.5)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.1)
     msgpack (1.3.3)
     mustermann (1.1.1)
@@ -123,14 +123,16 @@ GEM
     mustermann-grape (1.0.1)
       mustermann (>= 1.0.0)
     nio4r (2.5.2)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     parallel (1.19.2)
     parser (2.7.1.4)
       ast (~> 2.4.1)
     pg (1.2.3)
     puma (4.3.5)
       nio4r (~> 2.0)
+    racc (1.6.0)
     rack (2.2.3)
     rack-accept (0.4.5)
       rack (>= 0.4)