diff --git a/roles/glpi/tasks/install.yml b/roles/glpi/tasks/install.yml
index 21ea49c..69f6457 100644
--- a/roles/glpi/tasks/install.yml
+++ b/roles/glpi/tasks/install.yml
@@ -40,6 +40,15 @@
   when: glpi_install_mode != "none"
   tags: glpi
 
+- name: Remove automatic GLPI signature
+  lineinfile:
+    path: "{{ glpi_root_dir }}/web/inc/notificationtemplate.class.php"
+    regexp: '^(.*)Automatically generated by GLPI(.*)$'
+    line: '\1\2'
+    backrefs: True
+  loop: [1,2,3,4,5] # Ensure every occurrences are removed
+  tags: glpi
+
 - name: Remove unwanted files and directories
   file: path={{ glpi_root_dir }}/web/{{ item }} state=absent
   with_items:
diff --git a/roles/matrix_synapse/defaults/main.yml b/roles/matrix_synapse/defaults/main.yml
index c362b51..dbf058f 100644
--- a/roles/matrix_synapse/defaults/main.yml
+++ b/roles/matrix_synapse/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 
 # Synapse version to deploy
-synapse_version: 1.51.0
+synapse_version: 1.52.0
 
 # Should ansible handle Synapse upgrades ? If false, only initial install will be done
 synapse_manage_upgrade: True