diff --git a/Gemfile.lock b/Gemfile.lock
index eb5e1b4..ce6e851 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,7 @@ GEM
     commonmarker (0.18.2)
       ruby-enum (~> 0.5)
     concurrent-ruby (1.1.3)
-    crass (1.0.4)
+    crass (1.0.6)
     data_migrate (5.2.0)
       rails (>= 4.2)
     development_ribbon (0.2.0)
@@ -147,7 +147,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -155,16 +155,19 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     msgpack (1.2.4)
     multi_json (1.13.1)
     nested_form (0.3.2)
     nio4r (2.3.1)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     parallel (1.12.1)
     parser (2.5.3.0)
       ast (~> 2.4.0)
@@ -175,6 +178,7 @@ GEM
     puma (3.12.0)
     pundit (2.0.0)
       activesupport (>= 3.0.0)
+    racc (1.6.0)
     rack (2.0.6)
     rack-pjax (1.0.0)
       nokogiri (~> 1.5)
@@ -197,8 +201,8 @@ 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 (1.4.3)
+      loofah (~> 2.3)
     rails_admin (1.4.2)
       builder (~> 3.1)
       coffee-rails (~> 4.0)