diff --git a/Gemfile.lock b/Gemfile.lock
index 8b9b054..acd4cb2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -275,7 +275,7 @@ GEM
     rubocop-ast (1.32.0)
       parser (>= 3.3.1.0)
     ruby-progressbar (1.13.0)
-    rubytree (2.0.3)
+    rubytree (2.1.0)
       json (~> 2.0, > 2.3.1)
     sprockets (4.2.1)
       concurrent-ruby (~> 1.0)