diff --git a/Gemfile.lock b/Gemfile.lock
index 4357c5a..a81c662 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,27 +2,26 @@ PATH
   remote: .
   specs:
     better_serialization (0.2.1)
-      activerecord (~> 3.0)
+      activerecord (> 3.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (3.2.18)
-      activesupport (= 3.2.18)
-      builder (~> 3.0.0)
-    activerecord (3.2.18)
-      activemodel (= 3.2.18)
-      activesupport (= 3.2.18)
-      arel (~> 3.0.2)
-      tzinfo (~> 0.3.29)
-    activesupport (3.2.18)
-      i18n (~> 0.6, >= 0.6.4)
-      multi_json (~> 1.0)
-    arel (3.0.3)
-    builder (3.0.4)
+    activemodel (6.0.0)
+      activesupport (= 6.0.0)
+    activerecord (6.0.0)
+      activemodel (= 6.0.0)
+      activesupport (= 6.0.0)
+    activesupport (6.0.0)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+      zeitwerk (~> 2.1, >= 2.1.8)
     coderay (1.0.9)
+    concurrent-ruby (1.1.5)
     diff-lcs (1.2.4)
-    ffi (1.9.0)
+    ffi (1.11.1)
     formatador (0.2.4)
     guard (1.8.1)
       formatador (>= 0.2.4)
@@ -33,14 +32,15 @@ GEM
     guard-rspec (3.0.2)
       guard (>= 1.8)
       rspec (~> 2.13)
-    i18n (0.6.9)
+    i18n (1.7.0)
+      concurrent-ruby (~> 1.0)
     listen (1.2.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
       rb-kqueue (>= 0.2)
     lumberjack (1.0.4)
     method_source (0.8.1)
-    multi_json (1.10.1)
+    minitest (5.12.2)
     pry (0.9.12.2)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
@@ -63,7 +63,10 @@ GEM
     sqlite3-ruby (1.3.3)
       sqlite3 (>= 1.3.3)
     thor (0.18.1)
-    tzinfo (0.3.39)
+    thread_safe (0.3.6)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    zeitwerk (2.2.0)
 
 PLATFORMS
   ruby