diff --git a/Gemfile.lock b/Gemfile.lock
index ede44e4..c29eab8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -344,7 +344,7 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rspec-core (3.13.0)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.0)