diff --git a/Gemfile.lock b/Gemfile.lock
index 9717cbb..28e5370 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -73,7 +73,7 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.6.2)
-    rexml (3.2.5)
+    rexml (3.3.9)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)