diff --git a/Gemfile.lock b/Gemfile.lock
index 50cbde23..f375b940 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -652,7 +652,7 @@ GEM
     concurrent-ruby (1.0.5)
     connection_pool (2.2.1)
     crack (0.3.2)
-    crass (1.0.3)
+    crass (1.0.6)
     database_cleaner (1.3.0)
     debug_inspector (0.0.2)
     debugger-linecache (1.2.0)
@@ -779,7 +779,7 @@ GEM
       actionpack (>= 4, < 5.1)
       activesupport (>= 4, < 5.1)
       railties (>= 4, < 5.1)
-    loofah (2.1.1)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -796,9 +796,11 @@ GEM
       railties (>= 3.0.0, < 5.0.0)
     method_source (0.8.2)
     mime-types (2.99.3)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     minitest-rails (2.2.1)
       minitest (~> 5.7)
@@ -818,8 +820,9 @@ GEM
     nested_form (0.3.2)
     net-http-persistent (2.9.4)
     netrc (0.11.0)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     oauth (0.5.1)
     oauth2 (1.2.0)
       faraday (>= 0.8, < 0.10)
@@ -847,6 +850,7 @@ GEM
       slop (~> 3.4)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
+    racc (1.6.0)
     rack (1.6.10)
     rack-contrib (1.1.0)
       rack (>= 0.9.1)
@@ -876,8 +880,8 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-footnotes (4.0.2)
       rails (>= 3.2)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.3)
+      loofah (~> 2.3)
     railties (4.2.10)
       actionpack (= 4.2.10)
       activesupport (= 4.2.10)