diff --git a/Gemfile.lock b/Gemfile.lock
index 8765bb5..af3238b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -140,7 +140,7 @@ GEM
     kgio (2.10.0)
     launchy (2.4.3)
       addressable (~> 2.3)
-    loofah (2.4.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.4)