diff --git a/Gemfile.lock b/Gemfile.lock
index 2edc419..9e8b09e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     parameter_substitution (1.3.1)
-      activesupport (>= 5.2, < 7)
+      activesupport (>= 5.2, < 8)
       builder (~> 3.2)
       invoca-utils (~> 0.3)
       parslet (~> 1.8)
@@ -10,12 +10,11 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.1.6)
+    activesupport (7.0.4.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-      zeitwerk (~> 2.3)
     appraisal (2.2.0)
       bundler
       rake
@@ -24,7 +23,7 @@ GEM
     bump (0.6.1)
     byebug (10.0.2)
     coderay (1.1.2)
-    concurrent-ruby (1.1.10)
+    concurrent-ruby (1.2.0)
     diff-lcs (1.3)
     docile (1.1.5)
     ffi (1.15.5)
@@ -43,7 +42,7 @@ GEM
       guard (~> 2.1)
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
-    i18n (1.10.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     invoca-utils (0.4.1)
     json (2.6.1)
@@ -52,7 +51,7 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     lumberjack (1.0.13)
     method_source (0.9.0)
-    minitest (5.15.0)
+    minitest (5.17.0)
     nenv (0.3.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
@@ -90,9 +89,8 @@ GEM
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
     thor (0.20.0)
-    tzinfo (2.0.4)
+    tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    zeitwerk (2.5.4)
 
 PLATFORMS
   ruby
diff --git a/parameter_substitution.gemspec b/parameter_substitution.gemspec
index 219abf2..7f2173d 100644
--- a/parameter_substitution.gemspec
+++ b/parameter_substitution.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
     'allowed_push_host' => 'https://rubygems.org'
   }
 
-  spec.add_dependency 'activesupport', '>= 5.2', '< 7'
+  spec.add_dependency 'activesupport', '>= 5.2', '< 8'
   spec.add_dependency 'builder',       '~> 3.2'
   spec.add_dependency 'invoca-utils',  '~> 0.3'
   spec.add_dependency 'parslet',       '~> 1.8'