diff --git a/Gemfile.lock b/Gemfile.lock
index 86ad788..f2d326f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,10 +11,10 @@ GEM
     gosu (1.0.0)
     gosu_more_drawables (0.3.1)
     mini_portile2 (2.8.0)
-    nokogiri (1.13.4)
+    nokogiri (1.13.6)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.4-x86_64-linux)
+    nokogiri (1.13.6-x86_64-linux)
       racc (~> 1.4)
     racc (1.6.0)