diff --git a/Gemfile.lock b/Gemfile.lock
index c42dc8d..f73d72e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,7 +45,7 @@ GEM
     bindex (0.5.0)
     builder (3.2.3)
     byebug (11.0.1)
-    concurrent-ruby (1.1.5)
+    concurrent-ruby (1.1.7)
     connection_pool (2.2.2)
     crass (1.0.4)
     diff-lcs (1.3)
@@ -66,7 +66,7 @@ GEM
       thor (~> 0.19.1)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    i18n (1.6.0)
+    i18n (1.8.5)
       concurrent-ruby (~> 1.0)
     jquery-rails (4.3.3)
       rails-dom-testing (>= 1, < 3)
@@ -84,7 +84,7 @@ GEM
     method_source (0.9.2)
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
+    minitest (5.14.1)
     multipart-post (2.0.0)
     nio4r (2.3.1)
     nokogiri (1.10.2)
@@ -167,8 +167,7 @@ GEM
       rack (>= 1.5.0)
       rack-protection (>= 1.5.0)
       redis (>= 3.3.5, < 5)
-    spring (2.0.2)
-      activesupport (>= 4.2)
+    spring (2.1.1)
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
       spring (>= 1.2, < 3.0)
@@ -193,7 +192,7 @@ GEM
     turbolinks (5.2.0)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)