diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2d5400..8dcda58 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,19 +10,14 @@ jobs:
     strategy:
       matrix:
         ruby:
-          - '2.6'
-          - '2.7'
           - '3.0'
           - '3.1'
+          - '3.2'
         gemfile:
           - Gemfile
-          - gemfiles/activesupport-5.2.gemfile
           - gemfiles/activesupport-6.0.gemfile
           - gemfiles/activesupport-6.1.gemfile
           - gemfiles/activesupport-7.0.gemfile
-        exclude:
-          - ruby: '2.6'
-            gemfile: gemfiles/activesupport-7.0.gemfile
 
     name: Ruby ${{ matrix.ruby }} ${{ matrix.gemfile }}
     steps:
diff --git a/.github/workflows/cla.yml b/.github/workflows/cla.yml
new file mode 100644
index 0000000..5fa4908
--- /dev/null
+++ b/.github/workflows/cla.yml
@@ -0,0 +1,23 @@
+# .github/workflows/cla.yml
+name: Contributor License Agreement (CLA)
+
+on:
+  pull_request_target:
+    types: [opened, synchronize]
+  issue_comment:
+    types: [created]
+
+jobs:
+  cla:
+    runs-on: ubuntu-latest
+    if: |
+      (github.event.issue.pull_request
+        && !github.event.issue.pull_request.merged_at
+        && contains(github.event.comment.body, 'signed')
+      )
+      || (github.event.pull_request && !github.event.pull_request.merged)
+    steps:
+      - uses: Shopify/shopify-cla-action@v1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          cla-token: ${{ secrets.CLA_TOKEN }}
diff --git a/gemfiles/activesupport-5.2.gemfile b/gemfiles/activesupport-5.2.gemfile
deleted file mode 100644
index bfd27ab..0000000
--- a/gemfiles/activesupport-5.2.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source 'https://rubygems.org'
-
-gemspec path: '..'
-
-gem 'activesupport', '~> 5.2'