diff --git a/Gemfile.lock b/Gemfile.lock
index 4e05edd..014cd8a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,6 +69,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.1)
+    crass (1.0.5)
     daemons (1.2.3)
     debug_inspector (0.0.2)
     delayed_job (4.1.1)
@@ -123,7 +124,8 @@ GEM
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
-    loofah (2.0.3)
+    loofah (2.3.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.10)
     mail (2.6.3)