diff --git a/Gemfile.lock b/Gemfile.lock
index 2834324..1687e18 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -44,7 +44,7 @@ GEM
     regexp_parser (2.9.2)
     reline (0.5.9)
       io-console (~> 0.5)
-    rexml (3.3.3)
+    rexml (3.3.6)
       strscan
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
diff --git a/vendor/cache/rexml-3.3.3.gem b/vendor/cache/rexml-3.3.3.gem
deleted file mode 100644
index 8137714..0000000
Binary files a/vendor/cache/rexml-3.3.3.gem and /dev/null differ
diff --git a/vendor/cache/rexml-3.3.6.gem b/vendor/cache/rexml-3.3.6.gem
new file mode 100644
index 0000000..bf6b6fd
Binary files /dev/null and b/vendor/cache/rexml-3.3.6.gem differ