diff --git a/Gemfile.lock b/Gemfile.lock
index c42dc8d..3ab0a0e 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 (1.8.6)
       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 (5.14.2)
     multipart-post (2.0.0)
     nio4r (2.3.1)
     nokogiri (1.10.2)
@@ -181,19 +181,19 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.4.0)
     state_machines (0.5.0)
-    state_machines-activemodel (0.5.1)
-      activemodel (>= 4.1, < 6.0)
+    state_machines-activemodel (0.8.0)
+      activemodel (>= 5.1)
       state_machines (>= 0.5.0)
-    state_machines-activerecord (0.5.2)
-      activerecord (>= 4.1, < 6.0)
-      state_machines-activemodel (>= 0.5.0)
+    state_machines-activerecord (0.8.0)
+      activerecord (>= 5.1)
+      state_machines-activemodel (>= 0.8.0)
     thor (0.19.4)
     thread_safe (0.3.6)
     tilt (2.0.8)
     turbolinks (5.2.0)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)