diff --git a/Gemfile.lock b/Gemfile.lock
index fae44e6..c131722 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,62 +2,103 @@ PATH
   remote: .
   specs:
     kadim (0.1.0)
-      rails (~> 5.2.0, >= 5.2.0)
+      rails (>= 5.2, < 7.2)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.8.1)
-      actionpack (= 5.2.8.1)
+    actioncable (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      actionview (= 5.2.8.1)
-      activejob (= 5.2.8.1)
+      zeitwerk (~> 2.6)
+    actionmailbox (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activestorage (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      mail (>= 2.7.1)
+      net-imap
+      net-pop
+      net-smtp
+    actionmailer (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      actionview (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
       mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
-    actionpack (5.2.8.1)
-      actionview (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      rack (~> 2.0, >= 2.0.8)
+      net-imap
+      net-pop
+      net-smtp
+      rails-dom-testing (~> 2.2)
+    actionpack (7.1.3.2)
+      actionview (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      nokogiri (>= 1.8.5)
+      racc
+      rack (>= 2.2.4)
+      rack-session (>= 1.0.1)
       rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.8.1)
-      activesupport (= 5.2.8.1)
+      rails-dom-testing (~> 2.2)
+      rails-html-sanitizer (~> 1.6)
+    actiontext (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activestorage (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      globalid (>= 0.6.0)
+      nokogiri (>= 1.8.5)
+    actionview (7.1.3.2)
+      activesupport (= 7.1.3.2)
       builder (~> 3.1)
-      erubi (~> 1.4)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.8.1)
-      activesupport (= 5.2.8.1)
+      erubi (~> 1.11)
+      rails-dom-testing (~> 2.2)
+      rails-html-sanitizer (~> 1.6)
+    activejob (7.1.3.2)
+      activesupport (= 7.1.3.2)
       globalid (>= 0.3.6)
-    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)
-    activestorage (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      activerecord (= 5.2.8.1)
-      marcel (~> 1.0.0)
-    activesupport (5.2.8.1)
+    activemodel (7.1.3.2)
+      activesupport (= 7.1.3.2)
+    activerecord (7.1.3.2)
+      activemodel (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      timeout (>= 0.4.0)
+    activestorage (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      marcel (~> 1.0)
+    activesupport (7.1.3.2)
+      base64
+      bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-    arel (9.0.0)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      mutex_m
+      tzinfo (~> 2.0)
+    base64 (0.2.0)
+    bigdecimal (3.1.6)
     builder (3.2.4)
     concurrent-ruby (1.2.3)
+    connection_pool (2.4.1)
     crass (1.0.6)
     date (3.3.4)
+    drb (2.2.0)
+      ruby2_keywords
     erubi (1.12.0)
-    globalid (1.1.0)
-      activesupport (>= 5.0)
+    globalid (1.2.1)
+      activesupport (>= 6.1)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
+    io-console (0.7.2)
+    irb (1.11.2)
+      rdoc
+      reline (>= 0.4.2)
     loofah (2.22.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -67,10 +108,10 @@ GEM
       net-pop
       net-smtp
     marcel (1.0.2)
-    method_source (1.0.0)
     mini_mime (1.1.5)
     mini_portile2 (2.8.5)
     minitest (5.22.2)
+    mutex_m (0.2.0)
     net-imap (0.4.10)
       date
       net-protocol
@@ -81,26 +122,34 @@ GEM
     net-smtp (0.4.0.1)
       net-protocol
     nio4r (2.7.0)
-    nokogiri (1.15.5)
+    nokogiri (1.16.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
+    psych (5.1.2)
+      stringio
     racc (1.7.3)
-    rack (2.2.8)
+    rack (3.0.9.1)
+    rack-session (2.0.0)
+      rack (>= 3.0.0)
     rack-test (2.1.0)
       rack (>= 1.3)
-    rails (5.2.8.1)
-      actioncable (= 5.2.8.1)
-      actionmailer (= 5.2.8.1)
-      actionpack (= 5.2.8.1)
-      actionview (= 5.2.8.1)
-      activejob (= 5.2.8.1)
-      activemodel (= 5.2.8.1)
-      activerecord (= 5.2.8.1)
-      activestorage (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      bundler (>= 1.3.0)
-      railties (= 5.2.8.1)
-      sprockets-rails (>= 2.0.0)
+    rackup (2.1.0)
+      rack (>= 3)
+      webrick (~> 1.8)
+    rails (7.1.3.2)
+      actioncable (= 7.1.3.2)
+      actionmailbox (= 7.1.3.2)
+      actionmailer (= 7.1.3.2)
+      actionpack (= 7.1.3.2)
+      actiontext (= 7.1.3.2)
+      actionview (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activemodel (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activestorage (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      bundler (>= 1.15.0)
+      railties (= 7.1.3.2)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest
@@ -108,30 +157,32 @@ GEM
     rails-html-sanitizer (1.6.0)
       loofah (~> 2.21)
       nokogiri (~> 1.14)
-    railties (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      method_source
-      rake (>= 0.8.7)
-      thor (>= 0.19.0, < 2.0)
+    railties (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      irb
+      rackup (>= 1.0.0)
+      rake (>= 12.2)
+      thor (~> 1.0, >= 1.2.2)
+      zeitwerk (~> 2.6)
     rake (13.1.0)
-    sprockets (4.2.1)
-      concurrent-ruby (~> 1.0)
-      rack (>= 2.2.4, < 4)
-    sprockets-rails (3.4.2)
-      actionpack (>= 5.2)
-      activesupport (>= 5.2)
-      sprockets (>= 3.0.0)
+    rdoc (6.6.2)
+      psych (>= 4.0.0)
+    reline (0.4.3)
+      io-console (~> 0.5)
+    ruby2_keywords (0.0.5)
     sqlite3 (1.6.9)
       mini_portile2 (~> 2.8.0)
-    thor (1.3.0)
-    thread_safe (0.3.6)
+    stringio (3.1.0)
+    thor (1.3.1)
     timeout (0.4.1)
-    tzinfo (1.2.11)
-      thread_safe (~> 0.1)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    webrick (1.8.1)
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
+    zeitwerk (2.6.13)
 
 PLATFORMS
   ruby
diff --git a/kadim.gemspec b/kadim.gemspec
index 51f8c0b..494fc1f 100644
--- a/kadim.gemspec
+++ b/kadim.gemspec
@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
 
   spec.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
 
-  spec.add_dependency "rails", "~> 5.2.0", ">= 5.2.0"
+  spec.add_dependency "rails", ">= 5.2", "< 7.2"
 
   spec.add_development_dependency "sqlite3", "~> 1.6.0", "< 1.7"
 end