diff --git a/Gemfile.lock b/Gemfile.lock
index 91075ef..f5d0ee6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -73,7 +73,7 @@ GEM
     rdoc (6.7.0)
       psych (>= 4.0.0)
     regexp_parser (2.9.2)
-    rexml (3.3.7)
+    rexml (3.3.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)