--- a/Gemfile	Sat Aug 21 20:46:52 2021 +0900
+++ b/Gemfile	Sat Jan 15 02:39:53 2022 +0900
@@ -1,11 +1,17 @@
 source "https://rubygems.org"
 
-rails_ver = "~> 6.1.0"
+rails_ver = "~> 7.0.1"
+
 gem "actionview", rails_ver
 gem "railties", rails_ver
 gem "actionpack", rails_ver
 
-gem "redis-rails"
+# TODO: back to release version after they released version which support Rails 7
+# "redis-actionpack" and "redis-activesupport" are only here because otherwise "redis-rails"
+# will try to download outdated version of those.
+gem "redis-actionpack", github: "redis-store/redis-actionpack", branch: "master"
+gem "redis-activesupport", github: "redis-store/redis-activesupport", branch: "master"
+gem "redis-rails", github: "redis-store/redis-rails", branch: "master"
 gem "redis"
 gem "redis-store"
 
@@ -15,4 +21,3 @@
 gem "newrelic_rpm"
 
 gem "puma", :require => false
-gem "falcon", :require => false, :platforms => :ruby