diff --git a/Gemfile.lock b/Gemfile.lock
index 320d547..c2dc1cb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,7 +67,8 @@ GEM
     regexp_parser (2.6.0)
     rest-client (1.6.7)
       mime-types (>= 1.16)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
@@ -121,6 +122,7 @@ GEM
     simplecov-html (0.12.3)
     simplecov-lcov (0.8.0)
     simplecov_json_formatter (0.1.4)
+    strscan (3.1.0)
     term-ansicolor (1.2.2)
       tins (~> 0.8)
     thor (0.18.1)