diff --git a/scripts/install b/scripts/install
index 052c39d..304602c 100755
--- a/scripts/install
+++ b/scripts/install
@@ -73,6 +73,7 @@ ynh_replace_string --match_string="'DC_DBNAME', ''" --replace_string="'DC_DBNAME
 ynh_replace_string --match_string="'DC_MASTER_KEY', ''" --replace_string="'DC_MASTER_KEY', '$master_key'" --target_file=$php_config
 ynh_replace_string --match_string="'DC_ADMIN_URL', ''" --replace_string="'DC_ADMIN_URL', 'https://$domain$admin_url'" --target_file=$php_config
 ynh_replace_string --match_string="'DC_ADMIN_MAILFROM', ''" --replace_string="'DC_ADMIN_MAILFROM', '$email'" --target_file=$php_config
+ynh_replace_string --match_string="//define('DC_NOT_UPDATE', false);" --replace_string="define('DC_NOT_UPDATE', true);" --target_file=$php_config
 
 # Adding LDAP login
 blog_admin="false"
diff --git a/scripts/upgrade b/scripts/upgrade
index e8cb7a4..b5b457b 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -123,6 +123,7 @@ ynh_replace_string --match_string="'DC_DBNAME', ''" --replace_string="'DC_DBNAME
 ynh_replace_string --match_string="'DC_MASTER_KEY', ''" --replace_string="'DC_MASTER_KEY', '$master_key'" --target_file=$php_config
 ynh_replace_string --match_string="'DC_ADMIN_URL', ''" --replace_string="'DC_ADMIN_URL', 'https://$domain$admin_url'" --target_file=$php_config
 ynh_replace_string --match_string="'DC_ADMIN_MAILFROM', ''" --replace_string="'DC_ADMIN_MAILFROM', '$email'" --target_file=$php_config
+ynh_replace_string --match_string="//define('DC_NOT_UPDATE', false);" --replace_string="define('DC_NOT_UPDATE', true);" --target_file=$php_config
 
 # Adding LDAP login
 ynh_add_config --template="../conf/class.auth.ldap.php" --destination="$install_dir/inc/class.auth.ldap.php"