diff --git a/Gemfile.lock b/Gemfile.lock
index 919599d6..aa02660b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -222,7 +222,7 @@ GEM
     responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
-    rexml (3.3.8)
+    rexml (3.3.9)
     rspec-core (3.12.2)
       rspec-support (~> 3.12.0)
     rspec-expectations (3.12.3)