diff --git a/Gemfile b/Gemfile
index 7501f3873..48b3c5f35 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 ruby file: '.ruby-version'
 
 # app server
-gem 'rails', '~> 7.2.2'
+gem 'rails', '~> 8.0.0'
 
 # database
 gem 'pg'
diff --git a/Gemfile.lock b/Gemfile.lock
index 90ed06b00..be6106c36 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,66 +1,65 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (7.2.2)
-      actionpack (= 7.2.2)
-      activesupport (= 7.2.2)
+    actioncable (8.0.0)
+      actionpack (= 8.0.0)
+      activesupport (= 8.0.0)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (7.2.2)
-      actionpack (= 7.2.2)
-      activejob (= 7.2.2)
-      activerecord (= 7.2.2)
-      activestorage (= 7.2.2)
-      activesupport (= 7.2.2)
+    actionmailbox (8.0.0)
+      actionpack (= 8.0.0)
+      activejob (= 8.0.0)
+      activerecord (= 8.0.0)
+      activestorage (= 8.0.0)
+      activesupport (= 8.0.0)
       mail (>= 2.8.0)
-    actionmailer (7.2.2)
-      actionpack (= 7.2.2)
-      actionview (= 7.2.2)
-      activejob (= 7.2.2)
-      activesupport (= 7.2.2)
+    actionmailer (8.0.0)
+      actionpack (= 8.0.0)
+      actionview (= 8.0.0)
+      activejob (= 8.0.0)
+      activesupport (= 8.0.0)
       mail (>= 2.8.0)
       rails-dom-testing (~> 2.2)
-    actionpack (7.2.2)
-      actionview (= 7.2.2)
-      activesupport (= 7.2.2)
+    actionpack (8.0.0)
+      actionview (= 8.0.0)
+      activesupport (= 8.0.0)
       nokogiri (>= 1.8.5)
-      racc
-      rack (>= 2.2.4, < 3.2)
+      rack (>= 2.2.4)
       rack-session (>= 1.0.1)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
       useragent (~> 0.16)
-    actiontext (7.2.2)
-      actionpack (= 7.2.2)
-      activerecord (= 7.2.2)
-      activestorage (= 7.2.2)
-      activesupport (= 7.2.2)
+    actiontext (8.0.0)
+      actionpack (= 8.0.0)
+      activerecord (= 8.0.0)
+      activestorage (= 8.0.0)
+      activesupport (= 8.0.0)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (7.2.2)
-      activesupport (= 7.2.2)
+    actionview (8.0.0)
+      activesupport (= 8.0.0)
       builder (~> 3.1)
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activejob (7.2.2)
-      activesupport (= 7.2.2)
+    activejob (8.0.0)
+      activesupport (= 8.0.0)
       globalid (>= 0.3.6)
-    activemodel (7.2.2)
-      activesupport (= 7.2.2)
-    activerecord (7.2.2)
-      activemodel (= 7.2.2)
-      activesupport (= 7.2.2)
+    activemodel (8.0.0)
+      activesupport (= 8.0.0)
+    activerecord (8.0.0)
+      activemodel (= 8.0.0)
+      activesupport (= 8.0.0)
       timeout (>= 0.4.0)
-    activestorage (7.2.2)
-      actionpack (= 7.2.2)
-      activejob (= 7.2.2)
-      activerecord (= 7.2.2)
-      activesupport (= 7.2.2)
+    activestorage (8.0.0)
+      actionpack (= 8.0.0)
+      activejob (= 8.0.0)
+      activerecord (= 8.0.0)
+      activesupport (= 8.0.0)
       marcel (~> 1.0)
-    activesupport (7.2.2)
+    activesupport (8.0.0)
       base64
       benchmark (>= 0.3)
       bigdecimal
@@ -72,6 +71,7 @@ GEM
       minitest (>= 5.1)
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
     ast (2.4.2)
@@ -316,20 +316,20 @@ GEM
     rack-timeout (0.7.0)
     rackup (2.2.1)
       rack (>= 3)
-    rails (7.2.2)
-      actioncable (= 7.2.2)
-      actionmailbox (= 7.2.2)
-      actionmailer (= 7.2.2)
-      actionpack (= 7.2.2)
-      actiontext (= 7.2.2)
-      actionview (= 7.2.2)
-      activejob (= 7.2.2)
-      activemodel (= 7.2.2)
-      activerecord (= 7.2.2)
-      activestorage (= 7.2.2)
-      activesupport (= 7.2.2)
+    rails (8.0.0)
+      actioncable (= 8.0.0)
+      actionmailbox (= 8.0.0)
+      actionmailer (= 8.0.0)
+      actionpack (= 8.0.0)
+      actiontext (= 8.0.0)
+      actionview (= 8.0.0)
+      activejob (= 8.0.0)
+      activemodel (= 8.0.0)
+      activerecord (= 8.0.0)
+      activestorage (= 8.0.0)
+      activesupport (= 8.0.0)
       bundler (>= 1.15.0)
-      railties (= 7.2.2)
+      railties (= 8.0.0)
     rails-controller-testing (1.0.5)
       actionpack (>= 5.0.1.rc1)
       actionview (>= 5.0.1.rc1)
@@ -346,9 +346,9 @@ GEM
     rails-html-sanitizer (1.6.1)
       loofah (~> 2.21)
       nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
-    railties (7.2.2)
-      actionpack (= 7.2.2)
-      activesupport (= 7.2.2)
+    railties (8.0.0)
+      actionpack (= 8.0.0)
+      activesupport (= 8.0.0)
       irb (~> 1.13)
       rackup (>= 1.0.0)
       rake (>= 12.2)
@@ -502,6 +502,7 @@ GEM
     unicode-display_width (3.1.2)
       unicode-emoji (~> 4.0, >= 4.0.4)
     unicode-emoji (4.0.4)
+    uri (1.0.2)
     useragent (0.16.11)
     web-console (4.2.1)
       actionview (>= 6.0.0)
@@ -563,7 +564,7 @@ DEPENDENCIES
   rack-attack
   rack-contrib
   rack-timeout
-  rails (~> 7.2.2)
+  rails (~> 8.0.0)
   rails-controller-testing
   rails-erd
   redis