diff --git a/Gemfile.lock b/Gemfile.lock
index faaa9f3..cd46561 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,6 +46,7 @@ GEM
     bcp47 (0.3.3)
       i18n
     builder (3.2.2)
+    crass (1.0.6)
     deprecation (0.2.2)
       activesupport
     diff-lcs (1.2.5)
@@ -98,7 +99,8 @@ GEM
     logging (2.0.0)
       little-plugger (~> 1.1)
       multi_json (~> 1.10)
-    loofah (2.0.3)
+    loofah (2.19.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
@@ -136,8 +138,8 @@ GEM
       activesupport (>= 4.2.0.beta, < 5.0)
       nokogiri (~> 1.6.0)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.2)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (4.2.4)
       actionpack (= 4.2.4)
       activesupport (= 4.2.4)