diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6589890b..89fb192a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -28,7 +28,6 @@ jobs:
       fail-fast: false
       matrix:
         ruby-version:
-          - '3.0'
           - '3.1'
           - '3.2'
           - '3.3'
diff --git a/.rubocop.yml b/.rubocop.yml
index a4e374b2..007b2a28 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 3.1
   Exclude:
     - "lib/generators/**/templates/**/*"
     <% `git status --ignored --porcelain`.lines.grep(/^!! /).each do |path| %>
@@ -23,15 +23,6 @@ Metrics/ModuleLength:
 Layout/LineLength:
   Max: 120
 
-Metrics/AbcSize:
-  Enabled: false
-
-Metrics/CyclomaticComplexity:
-  Enabled: false
-
-Metrics/PerceivedComplexity:
-  Enabled: false
-
 Gemspec/RequiredRubyVersion:
  Enabled: false
 
@@ -62,14 +53,11 @@ Style/StringLiteralsInInterpolation:
 Style/StructInheritance:
   Enabled: false
 
-Style/AndOr:
-  Enabled: false
-
-Style/Not:
-  Enabled: false
-
 Style/DoubleNegation:
   Enabled: false
 
 Style/Documentation:
   Enabled: false # TODO: Enable again once we have more docs
+
+Style/HashSyntax:
+  EnforcedShorthandSyntax: never
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b509deb3..3af4cec9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,9 @@
 
 ## Unreleased
 
-- Update `ApplicationPolicy`` generator to qualify the `Scope` class name (#792)
+- Dropped support for Ruby 3.0 (#796)
 
+- Update `ApplicationPolicy` generator to qualify the `Scope` class name (#792)
 - Policy generator uses `NoMethodError` to indicate `#resolve` is not implemented (#776)
 
 ## 2.3.1 (2023-07-17)
diff --git a/lib/pundit/policy_finder.rb b/lib/pundit/policy_finder.rb
index 40467d9d..ecc6e9bb 100644
--- a/lib/pundit/policy_finder.rb
+++ b/lib/pundit/policy_finder.rb
@@ -56,7 +56,7 @@ def policy!
 
     # @return [String] the name of the key this object would have in a params hash
     #
-    def param_key
+    def param_key # rubocop:disable Metrics/AbcSize
       model = object.is_a?(Array) ? object.last : object
 
       if model.respond_to?(:model_name)