diff --git a/Gemfile.lock b/Gemfile.lock
index dd85ef1..9aa3369 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,15 +29,15 @@ GEM
     gosu_more_drawables (0.3.1)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
-    mini_portile2 (2.5.3)
-    nokogiri (1.11.6)
-      mini_portile2 (~> 2.5.0)
+    mini_portile2 (2.8.0)
+    nokogiri (1.13.2)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.11.6-x64-mingw32)
+    nokogiri (1.13.2-x64-mingw32)
       racc (~> 1.4)
     ocra (1.3.11)
     opengl-bindings (1.6.11)
-    racc (1.5.2)
+    racc (1.6.0)
     rake (13.0.3)
     rubyzip (2.3.0)