diff --git a/Gemfile.lock b/Gemfile.lock
index 172c375e..02316cb4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -133,7 +133,7 @@ GEM
       tins (~> 1.6)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
-    crass (1.0.4)
+    crass (1.0.6)
     daemons (1.2.6)
     database_cleaner (1.7.0)
     debug_inspector (0.0.3)
@@ -262,7 +262,7 @@ GEM
       activerecord
       kaminari-core (= 1.1.1)
     kaminari-core (1.1.1)
-    loofah (2.2.2)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -282,10 +282,12 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.8.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     minitest-reporters (1.3.1)
       ansi
@@ -303,8 +305,9 @@ GEM
     net-ssh (5.0.2)
     net-ssh-gateway (2.0.0)
       net-ssh (>= 4.0.0)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     notify_with (0.0.2)
       jbuilder (~> 2.0)
       rails (>= 4.2.0)
@@ -345,6 +348,7 @@ GEM
     pundit (2.0.0)
       activesupport (>= 3.0.0)
     raabro (1.1.6)
+    racc (1.6.0)
     rack (1.6.10)
     rack-protection (1.5.5)
       rack
@@ -368,8 +372,8 @@ 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 (1.4.3)
+      loofah (~> 2.3)
     rails-observers (0.1.5)
       activemodel (>= 4.0)
     rails_12factor (0.0.3)