diff --git a/Gemfile.lock b/Gemfile.lock
index e55b9ab4..b45ca566 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
     ast (2.4.0)
     authority (3.3.0)
       activesupport (>= 3.0.0)
-    autoprefixer-rails (8.6.2)
+    autoprefixer-rails (8.6.3)
       execjs
     aws-eventstream (1.0.0)
     aws-partitions (1.91.0)
@@ -256,7 +256,7 @@ GEM
     mustache (1.0.5)
     nenv (0.3.0)
     newrelic_rpm (5.2.0.345)
-    nokogiri (1.8.2)
+    nokogiri (1.8.3)
       mini_portile2 (~> 2.3.0)
     nokogumbo (1.5.0)
       nokogiri
@@ -417,7 +417,7 @@ GEM
     slack-notifier (2.3.2)
     social-share-button (1.1.0)
       coffee-rails
-    sprockets (3.7.1)
+    sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-es6 (0.9.2)
@@ -443,7 +443,7 @@ GEM
       ref
     thor (0.18.1)
     thread_safe (0.3.6)
-    thredded (0.15.1)
+    thredded (0.15.3)
       active_record_union (>= 1.3.0)
       autoprefixer-rails
       db_text_search (~> 0.2.0)