diff --git a/Gemfile.lock b/Gemfile.lock
index b1d6d58..8531d2e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,7 +51,7 @@ GEM
     rainbow (3.1.1)
     rake (13.1.0)
     regexp_parser (2.10.0)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)