diff --git a/Gemfile.lock b/Gemfile.lock
index 0a5fafa..e4f9aab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,22 +2,21 @@ PATH
   remote: .
   specs:
     jekyll_github_sample (0.3.2)
-      activesupport (>= 4.0, < 7.0)
+      activesupport (>= 4.0, < 8.0)
       jekyll (>= 3.0, < 5.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.3.1)
+    activesupport (7.0.4.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-      zeitwerk (~> 2.2, >= 2.2.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.2.0)
     diff-lcs (1.3)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
@@ -26,7 +25,7 @@ GEM
     ffi (1.11.1)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
-    i18n (1.8.2)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jekyll (4.0.0)
       addressable (~> 2.4)
@@ -56,7 +55,7 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    minitest (5.14.1)
+    minitest (5.17.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.6)
@@ -84,11 +83,9 @@ GEM
       ffi (~> 1.9)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
-    thread_safe (0.3.6)
-    tzinfo (1.2.7)
-      thread_safe (~> 0.1)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
     unicode-display_width (1.6.0)
-    zeitwerk (2.3.0)
 
 PLATFORMS
   ruby
diff --git a/jekyll_github_sample.gemspec b/jekyll_github_sample.gemspec
index bb03a32..212704c 100644
--- a/jekyll_github_sample.gemspec
+++ b/jekyll_github_sample.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
   s.test_files    = `git ls-files -- {spec}/*`.split('\n')
   s.require_paths = ['lib']
 
-  s.add_dependency 'activesupport', '>= 4.0', '< 7.0'
+  s.add_dependency 'activesupport', '>= 4.0', '< 8.0'
   s.add_dependency 'jekyll',        '>= 3.0', '< 5.0'
 
   s.add_development_dependency 'rspec'