diff --git a/Gemfile.lock b/Gemfile.lock
index e9193e6..36fcc59 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
     multi_json (1.15.0)
     public_suffix (6.0.1)
     rake (13.2.1)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)