diff --git a/Gemfile.lock b/Gemfile.lock
index d6e6e7cb..d1755770 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -44,7 +44,7 @@ GEM
     commonmarker (0.17.9)
       ruby-enum (~> 0.5)
     concurrent-ruby (1.0.5)
-    crass (1.0.4)
+    crass (1.0.6)
     diff-lcs (1.3)
     dynamic_form (1.1.4)
     erubis (2.7.0)
@@ -67,7 +67,7 @@ GEM
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     kgio (2.11.2)
-    loofah (2.2.2)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     machinist (2.0)
@@ -107,8 +107,8 @@ GEM
       activesupport (>= 4.2.0, < 5.0)
       nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (4.2.8)
       actionpack (= 4.2.8)
       activesupport (= 4.2.8)