diff --git a/Gemfile.lock b/Gemfile.lock
index 8077767..d9ca79d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -66,7 +66,8 @@ GEM
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.4)
+    rexml (3.3.3)
+      strscan
     rouge (3.21.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -85,6 +86,7 @@ GEM
       rack-test
       sinatra (~> 1.4.0)
       tilt (>= 1.3, < 3)
+    strscan (3.1.0)
     tilt (2.0.10)
 
 PLATFORMS