diff --git a/Gemfile.lock b/Gemfile.lock
index 481644d..95da552 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,7 +100,7 @@ GEM
     rainbow (3.1.1)
     rake (12.3.3)
     regexp_parser (2.9.2)
-    rexml (3.3.5)
+    rexml (3.3.6)
       strscan
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
diff --git a/vendor/cache/rexml-3.3.5.gem b/vendor/cache/rexml-3.3.5.gem
deleted file mode 100644
index 12610b9..0000000
Binary files a/vendor/cache/rexml-3.3.5.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