diff --git a/Gemfile.lock b/Gemfile.lock
index 98127c9..d9ef2ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -222,7 +222,7 @@ GEM
     listen (3.7.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    loofah (2.12.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.2.8)
@@ -245,7 +245,7 @@ GEM
       net-ssh (>= 2.6.5, < 7.0.0)
     net-ssh (6.1.0)
     netaddr (1.5.1)
-    nokogiri (1.13.4)
+    nokogiri (1.13.10)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     notiffany (0.1.3)
@@ -265,7 +265,7 @@ GEM
       method_source (~> 1.0)
     rabl (0.14.5)
       activesupport (>= 2.3.14)
-    racc (1.6.0)
+    racc (1.6.1)
     rack (1.6.13)
     rack-protection (1.5.5)
       rack
@@ -296,8 +296,8 @@ GEM
       activesupport (>= 3.0)
       choice (~> 0.1.6)
       ruby-graphviz (~> 1.0.4)
-    rails-html-sanitizer (1.4.2)
-      loofah (~> 2.3)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (4.2.11.3)
       actionpack (= 4.2.11.3)
       activesupport (= 4.2.11.3)