diff --git a/Gemfile.lock b/Gemfile.lock
index 600554b9b..26f5314e9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -443,7 +443,7 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.3.9)
+    rexml (3.4.0)
     rspec-core (3.13.2)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.3)