diff --git a/.github/ci-gemfiles/ruby-3.0 b/.github/ci-gemfiles/ruby-3.0
index 931d1256e..e15a80aba 100644
--- a/.github/ci-gemfiles/ruby-3.0
+++ b/.github/ci-gemfiles/ruby-3.0
@@ -1,12 +1,12 @@
 source "https://rubygems.org"
 
-gem 'rake'
-gem 'rack'
+gem 'ansi'
 gem 'i18n'
 gem 'minitest'
-gem 'ansi'
-
 gem 'oj', require: false     # false is for testing with or without it
+gem 'rake'
+gem 'rack'
+gem 'rake-manifest', require: false
 
 gem 'rubocop', '~> 1.11', require: false
 gem 'rubocop-minitest', require: false
diff --git a/.github/workflows/pagy-ci.yml b/.github/workflows/pagy-ci.yml
index b68cb7fea..416739901 100644
--- a/.github/workflows/pagy-ci.yml
+++ b/.github/workflows/pagy-ci.yml
@@ -17,6 +17,7 @@ jobs:
             env:
               BUNDLE_GEMFILE: .github/ci-gemfiles/ruby-3.0
               CODECOV: true
+              RAKE_MANIFEST: true
       fail-fast: false
     env: ${{ matrix.env }}
 
@@ -40,3 +41,7 @@ jobs:
         uses: codecov/codecov-action@v1.3.2
         with:
           fail_ci_if_error: true
+
+      - name: Check whether pagy.manifest is up-to-date in master|dev
+        if: ${{ env.RAKE_MANIFEST == 'true' && (endsWith(github.ref, '/master') || endsWith(github.ref, '/dev')) }}
+        run: bundle exec rake manifest:check
diff --git a/README.md b/README.md
index f0320c779..6e409e6a1 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Gem Version](https://img.shields.io/gem/v/pagy.svg?label=pagy&colorA=99004d&colorB=cc0066)](https://rubygems.org/gems/pagy)
 ![ruby](https://img.shields.io/badge/ruby-3.0+-ruby.svg?colorA=99004d&colorB=cc0066)
-[![Build Status](https://img.shields.io/travis/ddnexus/pagy/master.svg?colorA=1f7a1f&colorB=2aa22a)](https://travis-ci.org/ddnexus/pagy/branches)
+[![Build Status](https://img.shields.io/github/workflow/status/ddnexus/pagy/Pagy%20CI/master)](https://github.com/ddnexus/pagy/actions?query=branch:master)
 [![CodeCov](https://img.shields.io/codecov/c/github/ddnexus/pagy.svg?colorA=1f7a1f&colorB=2aa22a)](https://codecov.io/gh/ddnexus/pagy)
 ![Rubocop Status](https://img.shields.io/badge/rubocop-passing-rubocop.svg?colorA=1f7a1f&colorB=2aa22a)
 [![MIT license](https://img.shields.io/badge/license-MIT-mit.svg?colorA=1f7a1f&colorB=2aa22a)](http://opensource.org/licenses/MIT)
diff --git a/Rakefile b/Rakefile
index 539bbba20..a3070813c 100644
--- a/Rakefile
+++ b/Rakefile
@@ -2,4 +2,4 @@
 
 Rake.add_rakelib 'tasks'
 
-task default: %i[test rubocop coverage_summary]
+task default: %i[test rubocop coverage_summary manifest:check]
diff --git a/tasks/gem_management.rake b/tasks/gem_management.rake
index ad6ca507e..3eead1055 100644
--- a/tasks/gem_management.rake
+++ b/tasks/gem_management.rake
@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-return if ENV['CI']
-
 # gem build and release tasks, with added checks and patches
 
 require 'bundler/gem_tasks'