diff --git a/Gemfile.lock b/Gemfile.lock
index 610570f..6d2a9dd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -66,15 +66,16 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.10)
     connection_pool (2.2.1)
     diff-lcs (1.3)
     erubi (1.6.0)
     execjs (2.7.0)
     ffi (1.9.18)
-    globalid (0.4.0)
-      activesupport (>= 4.2.0)
-    i18n (0.8.4)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
@@ -92,7 +93,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_portile2 (2.2.0)
-    minitest (5.10.2)
+    minitest (5.15.0)
     multi_json (1.12.1)
     nio4r (2.1.0)
     nokogiri (1.8.0)
@@ -179,7 +180,7 @@ GEM
     turbolinks (5.0.1)
       turbolinks-source (~> 5)
     turbolinks-source (5.0.3)
-    tzinfo (1.2.3)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)