diff --git a/Gemfile.lock b/Gemfile.lock
index b258b8b..9184a1e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -230,7 +230,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.6.0)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -243,15 +243,16 @@ GEM
       rake
     mini_magick (4.11.0)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.14.1)
     msgpack (1.3.3)
     multi_json (1.14.1)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     nio4r (2.5.8)
-    nokogiri (1.11.5)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     oauth2 (1.4.4)
       faraday (>= 0.8, < 2.0)
       jwt (>= 1.0, < 3.0)
@@ -269,6 +270,7 @@ GEM
     public_suffix (4.0.5)
     puma (4.3.12)
       nio4r (~> 2.0)
+    racc (1.6.0)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -288,7 +290,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.3)
       loofah (~> 2.3)
     railties (5.2.4.3)
       actionpack (= 5.2.4.3)