diff --git a/Gemfile.lock b/Gemfile.lock
index 28b5fc3..8938771 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,7 +62,7 @@ GEM
       capistrano-bundler
       puma (~> 3.4)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.6)
     dry_ice (0.1.1)
       httparty (~> 0.13.1)
       msgpack
@@ -76,7 +76,7 @@ GEM
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     json (1.8.6)
-    loofah (2.2.3)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -118,8 +118,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    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 (5.1.7)
       actionpack (= 5.1.7)
       activesupport (= 5.1.7)