diff --git a/Gemfile.lock b/Gemfile.lock
index e1e7119..17f90b8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -146,7 +146,7 @@ GEM
       less (~> 2.6.0)
       sprockets (~> 3.0)
     libv8 (3.16.14.19)
-    loofah (2.15.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)