diff --git a/Gemfile.lock b/Gemfile.lock
index 30eebf3..acb8022 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,7 +96,7 @@ GEM
     concurrent-ruby (1.1.5)
     cose (0.6.1)
       cbor (~> 0.5.9)
-    crass (1.0.4)
+    crass (1.0.6)
     css_parser (1.7.0)
       addressable
     declarative (0.0.10)
@@ -201,7 +201,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.13)
@@ -215,7 +215,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_xml (0.6.0)
@@ -226,8 +226,9 @@ GEM
     net-ssh (5.2.0)
     netrc (0.11.0)
     nio4r (2.3.1)
-    nokogiri (1.10.2)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -268,6 +269,7 @@ GEM
     psych (3.1.0)
     public_suffix (3.0.3)
     puma (3.12.1)
+    racc (1.6.1)
     rack (2.0.7)
     rack-proxy (0.6.5)
       rack
@@ -288,8 +290,8 @@ 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 (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (5.1.7)
       actionpack (= 5.1.7)
       activesupport (= 5.1.7)