diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index 571aa08..91404c6 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -4,11 +4,11 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v7
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1
+          ruby-version: 3.4
           bundler-cache: true
       - name: Run RuboCop
         run: bundle exec rubocop
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d98b39b..113311e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,15 +6,16 @@ jobs:
     strategy:
       matrix:
         entry:
-          - { ruby: "2.7" }
-          - { ruby: "3.0" }
           - { ruby: "3.1" }
           - { ruby: "3.2" }
+          - { ruby: "3.3" }
+          - { ruby: "3.4" }
+          - { ruby: "4.0" }
           - { ruby: ruby-head, ignore: true }
           - { ruby: jruby-head, ignore: true }
     name: Test (ruby=${{ matrix.entry.ruby }})
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v7
       - name: Install Ruby
         uses: ruby/setup-ruby@v1
         with:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd6b7f6..26adbda 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 * [#49](https://github.com/dblock/open-weather-ruby-client/pull/49): Upgrade danger-changelog to 0.8.0 and danger-toc to 0.2.0 - [@dblock](https://github.com/dblock), [@Copilot](https://github.com/apps/copilot-swe-agent).
 * Your contribution here.
 * [#46](https://github.com/dblock/open-weather-ruby-client/pull/46): Added support for the five day forecast API - [@mgm702](https://github.com/mgm702).
+* [#48](https://github.com/dblock/open-weather-ruby-client/pull/48): Modernized CI: dropped EOL Ruby 2.7/3.0, added Ruby 3.3/3.4 to the test matrix, bumped `actions/checkout` to v7, and fixed the Tests badge link in the README - [@dblock](https://github.com/dblock), [@Copilot](https://github.com/apps/copilot-swe-agent).
 
 ### 0.6.0 (2024/10/19)
 
diff --git a/README.md b/README.md
index 9833452..66b786a 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@ OpenWeather Ruby Client
 =======================
 
 [![Gem Version](https://badge.fury.io/rb/open-weather-ruby-client.svg)](https://badge.fury.io/rb/open-weather-ruby-client)
-[![Tests Status](https://github.com/dblock/open-weather-ruby-client/actions/workflows/test.yml/badge.svg)](https://github.com/dblock/open-weather-ruby-client/actions)
+[![Tests Status](https://github.com/dblock/open-weather-ruby-client/actions/workflows/test.yml/badge.svg)](https://github.com/dblock/open-weather-ruby-client/actions/workflows/test.yml)
 
 A Ruby client for the [OpenWeather API v2.5 and v3.0](https://openweathermap.org/api).