diff --git a/Gemfile.lock b/Gemfile.lock
index 25298e67..21884f9f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.6)
     dynamic_form (1.1.4)
     erubis (2.7.0)
     execjs (2.7.0)
@@ -120,13 +120,13 @@ GEM
       railties (>= 3.1)
     jquery-ui-rails (6.0.1)
       railties (>= 3.2.16)
-    loofah (2.2.3)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     minitest-reporters (1.3.6)
       ansi
@@ -137,8 +137,10 @@ GEM
       railties (>= 3.1)
     multi_json (1.13.1)
     mysql2 (0.5.2)
-    nokogiri (1.10.3)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    racc (1.6.0)
     rack (1.6.11)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -159,8 +161,8 @@ 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_bootstrap_sortable (2.0.6)
       momentjs-rails (>= 2.8.3)
     railties (4.2.11.1)