diff --git a/Gemfile.lock b/Gemfile.lock
index eb5abcb..83f69f7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,22 +1,22 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (5.1.4)
-      activesupport (= 5.1.4)
-    activerecord (5.1.4)
-      activemodel (= 5.1.4)
-      activesupport (= 5.1.4)
-      arel (~> 8.0)
-    activesupport (5.1.4)
+    activemodel (5.2.8.1)
+      activesupport (= 5.2.8.1)
+    activerecord (5.2.8.1)
+      activemodel (= 5.2.8.1)
+      activesupport (= 5.2.8.1)
+      arel (>= 9.0)
+    activesupport (5.2.8.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     ansi (1.5.0)
-    arel (8.0.0)
+    arel (9.0.0)
     builder (3.2.3)
-    concurrent-ruby (1.0.5)
-    i18n (0.9.1)
+    concurrent-ruby (1.1.10)
+    i18n (1.11.0)
       concurrent-ruby (~> 1.0)
     minitest (5.10.3)
     minitest-reporters (1.1.19)
@@ -28,7 +28,7 @@ GEM
     ruby-progressbar (1.9.0)
     sqlite3 (1.3.13)
     thread_safe (0.3.6)
-    tzinfo (1.2.4)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
 
 PLATFORMS