diff --git a/Gemfile.lock b/Gemfile.lock
index 7b88b7d..248a336 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
     multipart-post (2.2.3)
     public_suffix (5.0.0)
     rake (12.3.3)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
       rspec-expectations (~> 3.11.0)