diff --git a/roles/mediawiki/tasks/main.yml b/roles/mediawiki/tasks/main.yml
index aa9fee66a8..94294f8499 100644
--- a/roles/mediawiki/tasks/main.yml
+++ b/roles/mediawiki/tasks/main.yml
@@ -49,6 +49,7 @@
     - php-pgsql # For badges db access
     - php-mbstring
     - fedora-messaging
+    - composer
     - git
   tags:
   - packages
@@ -76,11 +77,27 @@
     repo: https://github.com/fedora-infra/mediawiki-fedora-messaging.git
     dest: /usr/share/{{ wikiver }}/extensions/FedoraMessaging
     version: stable
+  register: result_git
   tags:
   - config
   - mediawiki
   - fedora-messaging
 
+- name: Create a directory for the php dependencies
+  file:
+    path: /srv/web/fp-wiki/extensions/FedoraMessaging/vendor
+    owner: apache
+    group: apache
+    mode: 0755
+
+- name: install the php dependencies
+  become: yes
+  become_user: apache
+  command:
+    cmd: composer install
+    chdir: /srv/web/fp-wiki/extensions/FedoraMessaging
+  when: result_git is changed
+
 - name: Create /etc/pki/fedora-messaging
   file:
     dest: /etc/pki/fedora-messaging