diff --git a/Gemfile.lock b/Gemfile.lock
index 4943078..4e4b369 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
       activesupport
     coderay (1.1.2)
     concurrent-ruby (1.0.5)
-    crass (1.0.3)
+    crass (1.0.6)
     daemons (1.2.6)
     domain_name (0.5.20170404)
       unf (>= 0.0.5, < 1.0.0)
@@ -67,7 +67,7 @@ GEM
       concurrent-ruby (~> 1.0)
     json (2.1.0)
     jsonapi-renderer (0.2.0)
-    loofah (2.2.1)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     machinist (2.0)
@@ -76,17 +76,19 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     mocha (1.4.0)
       metaclass (~> 0.0.1)
     mustermann (1.0.2)
     netrc (0.11.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
+    racc (1.6.1)
     rack (2.0.4)
     rack-protection (2.0.1)
       rack
@@ -95,8 +97,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
     railties (5.1.5)
       actionpack (= 5.1.5)
       activesupport (= 5.1.5)