diff --git a/Gemfile.lock b/Gemfile.lock
index fefce63..6632f2c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,11 +52,13 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.3.2)
+      strscan
     rouge (3.26.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
+    strscan (3.1.0)
     terminal-table (3.0.1)
       unicode-display_width (>= 1.1.1, < 3)
     unicode-display_width (2.0.0)