diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6ef800c4..36c74cee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,6 +13,7 @@ jobs:
     name: Scripts
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
         include:
           - test_script: collection
@@ -33,13 +34,12 @@ jobs:
     name: Playbooks
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
         include:
-          # TODO: This started failing on GitHub Actions.
-          # See: https://github.com/geerlingguy/ansible-for-devops/issues/429
-          # - playbook: deployments.yml
-          #   distro: ubuntu2004
-          #   test_idempotence: false
+          - playbook: deployments.yml
+            distro: ubuntu2004
+            test_idempotence: false
 
           # TODO: Not easy to test in CI at this time.
           # - playbook: deployments-balancer.yml
diff --git a/deployments/playbooks/deploy.yml b/deployments/playbooks/deploy.yml
index fe689520..4ad97c6e 100644
--- a/deployments/playbooks/deploy.yml
+++ b/deployments/playbooks/deploy.yml
@@ -9,6 +9,12 @@
     - geerlingguy.passenger
 
   tasks:
+    - name: Allow Git invocations in repositories owned by other users.
+      git_config:
+        name: safe.directory
+        scope: global
+        value: '*'
+
     - name: Ensure demo application is at correct release.
       git:
         repo: https://github.com/geerlingguy/demo-rails-app.git
@@ -18,8 +24,6 @@
         force: true
       register: app_updated
       notify: restart nginx
-      become: true
-      become_user: "{{ app_user }}"
 
     - name: Ensure secrets file is present.
       template:
diff --git a/deployments/playbooks/provision.yml b/deployments/playbooks/provision.yml
index 6ab34c68..710e1269 100644
--- a/deployments/playbooks/provision.yml
+++ b/deployments/playbooks/provision.yml
@@ -19,11 +19,3 @@
           - libreadline-dev
           - tzdata
         state: present
-
-    - name: Ensure app directory exists and is writeable.
-      file:
-        path: "{{ app_directory }}"
-        state: directory
-        owner: "{{ app_user }}"
-        group: "{{ app_user }}"
-        mode: 0755
diff --git a/deployments/playbooks/vars.yml b/deployments/playbooks/vars.yml
index a64f735f..1a512efa 100644
--- a/deployments/playbooks/vars.yml
+++ b/deployments/playbooks/vars.yml
@@ -18,8 +18,14 @@ passenger_ruby: /usr/local/bin/ruby
 
 # Variables for Ruby installation.
 ruby_install_from_source: true
-ruby_download_url: https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.6.tar.gz
-ruby_version: 2.7.6
+ruby_download_url: https://cache.ruby-lang.org/pub/ruby/2.6/ruby-2.6.0.tar.gz
+ruby_version: 2.6.0
+ruby_install_bundler: false
+ruby_install_gems:
+  - name: bundler
+    version: 2.1.4
+    user_install: false
+ruby_install_gems_user: root
 
 # Variables for Node.js installation.
 nodejs_install_npm_user: root