diff --git a/Gemfile.lock b/Gemfile.lock
index cd1b159..8b73a00 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,8 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (3.26.1)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -59,6 +60,7 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     sassc (2.4.0)
       ffi (~> 1.9)
+    strscan (3.1.0)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     unicode-display_width (1.8.0)