diff --git a/Gemfile.lock b/Gemfile.lock
index 4943078..871154a 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 (1.0.5)
     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 (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     machinist (2.0)
@@ -76,14 +76,14 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     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 (1.10.5)
+      mini_portile2 (~> 2.4.0)
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)