diff --git a/Gemfile.lock b/Gemfile.lock
index dd5cf1d..1c50aff 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,6 +90,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.2)
+    crass (1.0.6)
     debug_inspector (0.0.2)
     dotenv (2.1.1)
     dotenv-rails (2.1.1)
@@ -142,7 +143,8 @@ GEM
     logging (2.1.0)
       little-plugger (~> 1.1)
       multi_json (~> 1.10)
-    loofah (2.0.3)
+    loofah (2.19.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lru_redux (1.1.0)
     mail (2.6.4)