diff --git a/Gemfile.lock b/Gemfile.lock
index 46b6ac4..1e5435c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -150,7 +150,7 @@ GEM
       actionpack (>= 4, < 5.1)
       activesupport (>= 4, < 5.1)
       railties (>= 4, < 5.1)
-    loofah (2.4.0)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.2.4)
@@ -160,7 +160,7 @@ GEM
     method_source (1.0.0)
     mime-types (2.99.3)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.8.4)
     mocha (1.1.0)
       metaclass (~> 0.0.1)
@@ -172,8 +172,9 @@ GEM
     net-ssh (5.2.0)
     netrc (0.11.0)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     notiffany (0.1.3)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -191,6 +192,7 @@ GEM
       mime-types (>= 2.4.0)
       rest-client (~> 1.8.0)
       ruby-hmac (~> 0.4)
+    racc (1.6.0)
     rack (1.6.13)
     rack-cache (1.6.1)
       rack (>= 0.4)
@@ -215,7 +217,7 @@ GEM
       activesupport (>= 4.2.0, < 5.0)
       nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.3)
       loofah (~> 2.3)
     railties (4.2.10)
       actionpack (= 4.2.10)