diff --git a/Gemfile.lock b/Gemfile.lock
index c0a41a3..00c20a1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,8 @@ GEM
       psych (>= 4.0.0)
     reline (0.5.0)
       io-console (~> 0.5)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -53,6 +54,7 @@ GEM
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
     stringio (3.1.0)
+    strscan (3.1.0)
     thor (1.3.1)
 
 PLATFORMS