diff --git a/.github/workflows/composer-update-config.yml b/.github/workflows/composer-update-config.yml
new file mode 100644
index 00000000..f02438f9
--- /dev/null
+++ b/.github/workflows/composer-update-config.yml
@@ -0,0 +1,20 @@
+name: Run Composer Update with Config
+
+on:
+  workflow_dispatch:
+
+jobs:
+  update:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Update The Thing with config
+      id: update-action-with-config
+      uses: UN-OCHA/actions/composer-update@OPS-10254-config-too
+      with:
+        aws_access_key_id: ${{ secrets.ECR_AWS_ACCESS_KEY_ID }}
+        aws_secret_access_key: ${{ secrets.ECR_AWS_SECRET_ACCESS_KEY }}
+        github_access_token: ${{ secrets.PAT }}
+        patch_branch: ${{ github.head_ref || github.ref_name }}
+        patch_maintainers: ${{ secrets.DRUPAL_MAINTAINERS }}
+        slack_bot_token: ${{ secrets.SLACK_BOT_TOKEN }}
+        slack_channel_name: ${{ vars.SLACK_CHANNEL }}
diff --git a/tests/docker-compose.yml b/tests/docker-compose.yml
index 327de1ae..0a4030a9 100644
--- a/tests/docker-compose.yml
+++ b/tests/docker-compose.yml
@@ -30,6 +30,8 @@ services:
       - mysql
     volumes:
       - "./settings:/srv/www/shared/settings:ro"
+      # Mount config.
+      - "../config:/srv/www/config:rw"
       # Mount volumes for the private and public files.
       - "common-design-test-site-public:/srv/www/html/sites/default/files:rw"
       - "common-design-test-site-private:/srv/www/html/sites/default/private:rw"