diff --git a/Gemfile.lock b/Gemfile.lock
index a9088fe..554d67a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -193,7 +193,8 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     roar (1.1.0)
       representable (~> 3.0.0)
     rspec (3.10.0)
@@ -252,6 +253,7 @@ GEM
       gli
       hashie
       websocket-driver
+    strscan (3.1.0)
     timers (4.3.2)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)