diff --git a/Gemfile.lock b/Gemfile.lock
index 2ca7863..8061c8f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -19,7 +19,7 @@ GEM
     racc (1.7.1)
     rainbow (3.1.1)
     regexp_parser (2.8.2)
-    rexml (3.3.3)
+    rexml (3.3.6)
       strscan
     rspec (3.12.0)
       rspec-core (~> 3.12.0)