diff --git a/Gemfile.lock b/Gemfile.lock
index 03aab96..319a2a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,9 +8,9 @@ GEM
     graphviz (1.1.0)
       process-pipeline
     method_source (0.9.2)
-    mini_portile2 (2.5.1)
-    nokogiri (1.11.4)
-      mini_portile2 (~> 2.5.0)
+    mini_portile2 (2.6.1)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
     process-group (1.2.1)
       process-terminal (~> 0.2.0)