diff --git a/roles/mediawiki/tasks/extensions.yml b/roles/mediawiki/tasks/extensions.yml
new file mode 100644
index 00000000..8d45073f
--- /dev/null
+++ b/roles/mediawiki/tasks/extensions.yml
@@ -0,0 +1,13 @@
+---
+# {{ mediawiki.version_tag }}  # REL1_39
+- name: install mwGoogleSheets extension
+  git:
+    repo: 'https://github.com/marcidy/mwGoogleSheet.git'
+    dest: "/srv/mediawiki/{{ mediawiki.domain }}/extensions/mwGoogleSheet"
+    version: REL1_27
+
+- name: https://www.mediawiki.org/wiki/Extension:CategoryTree
+  git:
+    #repo:  # wikimedia gerrit, or github  # 'https://github.com/marcidy/mwGoogleSheet.git'
+    dest: "/srv/mediawiki/{{ mediawiki.domain }}/extensions/CategoryTree"
+    version: REL1_39
diff --git a/roles/mediawiki/tasks/main.yml b/roles/mediawiki/tasks/main.yml
index 2ca788bd..de552920 100644
--- a/roles/mediawiki/tasks/main.yml
+++ b/roles/mediawiki/tasks/main.yml
@@ -44,6 +44,7 @@
     repo: 'https://github.com/marcidy/mwGoogleSheet.git'
     dest: "/srv/mediawiki/{{ mediawiki.domain }}/extensions/mwGoogleSheet"
     version: REL1_27
+#- include: extensions.yml
 
 - name: install LocalSettings
   template: