diff --git a/conf/0.9.8.src b/conf/0.9.8.src
deleted file mode 100644
index 074f42e..0000000
--- a/conf/0.9.8.src
+++ /dev/null
@@ -1,7 +0,0 @@
-SOURCE_URL=https://fossil.kd2.org/garradin/uv/garradin-0.9.8.1.tar.bz2
-SOURCE_SUM=7cc64b51c9721c2dd7ee510f245bcfc4693ee07f74581ad74003906eb4716ef1
-SOURCE_SUM_PRG=sha256sum
-SOURCE_FORMAT=tar.bz2
-SOURCE_IN_SUBDIR=true
-SOURCE_FILENAME=
-
diff --git a/manifest.json b/manifest.json
index ed32e14..2d9f89b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -21,12 +21,12 @@
         "email": "win10@tutanota.com"
     },
     "requirements": {
-        "yunohost": ">= 4.3.0"
+        "yunohost": ">= 11.0.9"
     },
     "multi_instance": true,
     "services": [
         "nginx",
-        "php7.4-fpm"
+        "php8.0-fpm"
     ],
     "arguments": {
         "install": [
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 23826e6..ff2385c 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -7,7 +7,7 @@
 # dependencies used by the app
 #pkg_dependencies="imagemagick"
 
-YNH_PHP_VERSION="7.4"
+YNH_PHP_VERSION="8.0"
 
 extra_php_dependencies="php${YNH_PHP_VERSION} php${YNH_PHP_VERSION}-sqlite3 php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-intl  php${YNH_PHP_VERSION}-cli"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 9574a8e..3b01163 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -89,54 +89,6 @@ if [ -d "$skel_dist" ]; then
   cp -a "$skel_dist" /tmp/skel-dist
 fi
 
-#=================================================
-# UPGRADE TO 0.9.8 if necessary
-#=================================================
-
-if ynh_compare_current_package_version --comparison lt --version 0.9.8.1~ynh1
-then
-  ynh_script_progression --message="Upgrading to 0.9.8" --weight=5
-    # Download, check integrity, uncompress and patch the source from 0.9.8.src
-  ynh_setup_source --keep="config.local.php" --dest_dir="$final_path" --source_id="0.9.8"
-  # Set permissions on app files
-  ynh_system_user_create --username=$app
-  ynh_add_nginx_config
-  ynh_install_app_dependencies "$extra_php_dependencies"
-  ynh_add_fpm_config
-  phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
-  ynh_script_progression --message="restore data..." --weight=10
-
-  backup_bdd=/tmp/association.sqlite
-  backup_squelettes=/tmp/squelettes
-
-  if  [ -d "$backup_squelettes" ]
-  then
-    cp -a "$backup_squelettes" $final_path/www/squelettes
-  fi
-
-  if [ -e "$backup_bdd" ]
-  then
-    cp -a "$backup_bdd" $final_path/association.sqlite
-  fi
-
-  chown -R $app:$app $final_path
-  chmod 755 $final_path
-
-  # Temporarily enable visitors for curl if needed
-  visitors_enabled=$(ynh_permission_has_user "main" "visitors" && echo yes || echo no)
-  if [[ $visitors_enabled == "no" ]]; then
-    ynh_permission_update --permission "main" --add "visitors"
-  fi
-
-  # Finalize the upgrade
-  ynh_local_curl "/index.php"
-  sleep 5
-  ynh_local_curl "/index.php"
-
-  if [[ $visitors_enabled == "no" ]]; then
-    ynh_permission_update --permission "main" --remove "visitors"
-  fi
-fi
 #=================================================
 # UPGRADE TO 1.1.0 if necessary
 #=================================================