diff --git a/Gemfile.lock b/Gemfile.lock
index 1402af9..41e8c0d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -35,6 +35,7 @@ GEM
       columnize (= 0.9.0)
     coderay (1.1.0)
     columnize (0.9.0)
+    concurrent-ruby (1.1.8)
     crass (1.0.6)
     daemons (1.2.2)
     diff-lcs (1.2.5)
@@ -43,17 +44,18 @@ GEM
     eventmachine (1.0.7)
     faker (1.4.3)
       i18n (~> 0.5)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.2)
-    loofah (2.4.0)
+    loofah (2.9.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     method_source (0.8.2)
-    mini_portile2 (2.1.0)
-    minitest (5.5.1)
+    mini_portile2 (2.4.0)
+    minitest (5.12.0)
     multi_json (1.11.0)
-    nokogiri (1.6.8.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.9.1)
+      mini_portile2 (~> 2.4.0)
     pg (0.18.1)
     pry (0.10.1)
       coderay (~> 1.1.0)
@@ -67,11 +69,11 @@ GEM
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails-deprecated_sanitizer (1.0.3)
+    rails-deprecated_sanitizer (1.0.4)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.6)
-      activesupport (>= 4.2.0.beta, < 5.0)
-      nokogiri (~> 1.6.0)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.3.0)
       loofah (~> 2.3)
@@ -118,9 +120,9 @@ GEM
       eventmachine (~> 1.0)
       rack (~> 1.0)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (1.4.1)
-    tzinfo (1.2.2)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
 
 PLATFORMS