diff --git a/Gemfile.lock b/Gemfile.lock
index 43419fb..ddd8b63 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -352,8 +352,8 @@ GEM
       rubocop (~> 1.61)
       rubocop-rspec (~> 3, >= 3.0.1)
     ruby-progressbar (1.13.0)
-    rubytree (2.1.0)
-      json (~> 2.0, > 2.3.1)
+    rubytree (2.1.1)
+      json (~> 2.0, > 2.9)
     rubyzip (2.3.2)
     securerandom (0.4.1)
     shoulda-matchers (6.4.0)
@@ -582,7 +582,7 @@ CHECKSUMS
   rubocop-rspec (3.3.0) sha256=79e1b281a689044d1516fefbc52e2e6c06cd367c25ebeaf06a7a198e9071cd7d
   rubocop-rspec_rails (2.30.0) sha256=888112e83f9d7ef7ad2397e9d69a0b9614a4bae24f072c399804a180f80c4c46
   ruby-progressbar (1.13.0) sha256=80fc9c47a9b640d6834e0dc7b3c94c9df37f08cb072b7761e4a71e22cff29b33
-  rubytree (2.1.0) sha256=30e8759ba060dff0dabf7e40cbaaa4df892fa34cbe9f1b3fbb00e83a3f321e4b
+  rubytree (2.1.1) sha256=4925016356a81730e982f1f8c3b5f8da461f18906c77d238bad4c4ba896abd41
   rubyzip (2.3.2) sha256=3f57e3935dc2255c414484fbf8d673b4909d8a6a57007ed754dde39342d2373f
   securerandom (0.4.1) sha256=cc5193d414a4341b6e225f0cb4446aceca8e50d5e1888743fac16987638ea0b1
   shoulda-matchers (6.4.0) sha256=9055bb7f4bb342125fb860809798855c630e05ef5e75837b3168b8e6ee1608b0