diff --git a/Gemfile b/Gemfile
index 32a1abee9..37758485b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -29,7 +29,7 @@ end
 
 group(:unknown) do
   gem 'maruku', '~> 0.7'
-  gem 'activerecord', '~>6'
+  gem 'activerecord', '~>7'
 end
 
 # group(:debug) do
diff --git a/Gemfile.lock b/Gemfile.lock
index a37645959..f0e202414 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,22 +7,21 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (2.3.6)
-    activemodel (6.1.7)
-      activesupport (= 6.1.7)
-    activerecord (6.1.7)
-      activemodel (= 6.1.7)
-      activesupport (= 6.1.7)
-    activesupport (6.1.7)
+    activemodel (7.0.4.3)
+      activesupport (= 7.0.4.3)
+    activerecord (7.0.4.3)
+      activemodel (= 7.0.4.3)
+      activesupport (= 7.0.4.3)
+    activesupport (7.0.4.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-      zeitwerk (~> 2.3)
     addressable (2.8.1)
       public_suffix (>= 2.0.2, < 6.0)
     blockenspiel (0.5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.10)
+    concurrent-ruby (1.2.2)
     deep_merge (1.2.2)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
@@ -41,7 +40,7 @@ GEM
     hocon (1.3.1)
     http_parser.rb (0.8.0)
     httpclient (2.8.3)
-    i18n (1.12.0)
+    i18n (1.13.0)
       concurrent-ruby (~> 1.0)
     jekyll (4.3.1)
       addressable (~> 2.4)
@@ -76,7 +75,7 @@ GEM
     maruku (0.7.3)
     mercenary (0.4.0)
     mini_portile2 (2.8.0)
-    minitest (5.16.3)
+    minitest (5.18.0)
     multi_json (1.15.0)
     nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
@@ -145,7 +144,7 @@ GEM
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     thor (1.2.1)
-    tzinfo (2.0.5)
+    tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode (0.4.4.4)
     unicode-display_width (2.3.0)
@@ -160,14 +159,13 @@ GEM
     webrick (1.7.0)
     yard (0.9.28)
       webrick (~> 1.7.0)
-    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby
   x86_64-darwin-18
 
 DEPENDENCIES
-  activerecord (~> 6)
+  activerecord (~> 7)
   git (~> 1.8)
   jekyll (~> 4.1)
   json (~> 2.5)