diff --git a/README.md b/README.md
index 17bc4fa1..b5264f78 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ If you don't have YunoHost, please see [here](https://yunohost.org/#/install) to
 ## Overview
 The federated image sharing service Pixelfed, for YunoHost
 
-**Shipped version:** 0.8.6
+**Shipped version:** 0.9.0
 
 I'm waiting for an official release (alpha/beta or stable) to invest more time on this package. 
 Don't hesitate to give a hand if you wish, I assume only the nginx file needs improvments.
diff --git a/conf/app.src b/conf/app.src
index a62243bc..d492ccde 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/pixelfed/pixelfed/archive/v0.8.6.tar.gz
-SOURCE_SUM=56acbfe18752693d3312207d6955e65c9f6aa73c7e801a224248b2d4b8e2884f
+SOURCE_URL=https://github.com/pixelfed/pixelfed/archive/v0.9.0.tar.gz
+SOURCE_SUM=ea69f3441991c9122638b1476ba11ec1b7847fac569fa77a8ed7b03481b19d88
 OURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index b01bab6b..bcf4123e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -5,7 +5,7 @@
     "description": {
         "en": "ActivityPub Federated Image Sharing"
     },
-    "version": "0.8.6~ynh3",
+    "version": "0.9.0~ynh1",
     "url": "https://pixelfed.org/",
     "license": "AGPL-3.0-or-later",
     "maintainer": {
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 926b5524..7263215e 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -21,13 +21,14 @@ extra_pkg_dependencies="php7.2-bcmath php7.2-cli php7.2-curl php7.2-exif php7.2-
 
 # Execute a command with Composer
 #
-# usage: ynh_composer_exec [--workdir=$final_path] --commands="commands"
+# usage: ynh_composer_exec --phpversion=phpversion [--workdir=$final_path] --commands="commands"
 # | arg: -w, --workdir - The directory from where the command will be executed. Default $final_path.
 # | arg: -c, --commands - Commands to execute.
 ynh_composer_exec () {
 	# Declare an array to define the options of this helper.
-	local legacy_args=wc
-	declare -Ar args_array=( [w]=workdir= [c]=commands= )
+	local legacy_args=vwc
+	declare -Ar args_array=( [v]=phpversion= [w]=workdir= [c]=commands= )
+	local phpversion
 	local workdir
 	local commands
 	# Manage arguments with getopts
@@ -35,18 +36,19 @@ ynh_composer_exec () {
 	workdir="${workdir:-$final_path}"
 
 	COMPOSER_HOME="$workdir/.composer" \
-		php "$workdir/composer.phar" $commands \
+		php${phpversion} "$workdir/composer.phar" $commands \
 		-d "$workdir" --quiet --no-interaction
 }
 
 # Install and initialize Composer in the given directory
 #
-# usage: ynh_install_composer [--workdir=$final_path]
+# usage: ynh_install_composer --phpversion=phpversion [--workdir=$final_path]
 # | arg: -w, --workdir - The directory from where the command will be executed. Default $final_path.
 ynh_install_composer () {
 	# Declare an array to define the options of this helper.
-	local legacy_args=w
-	declare -Ar args_array=( [w]=workdir= )
+	local legacy_args=vw
+	declare -Ar args_array=( [v]=phpversion= [w]=workdir= )
+	local phpversion
 	local workdir
 	# Manage arguments with getopts
 	ynh_handle_getopts_args "$@"
@@ -54,14 +56,15 @@ ynh_install_composer () {
 
 	curl -sS https://getcomposer.org/installer \
 		| COMPOSER_HOME="$workdir/.composer" \
-		php -- --quiet --install-dir="$workdir" \
+		php${phpversion} -- --quiet --install-dir="$workdir" \
 		|| ynh_die "Unable to install Composer."
 
 	# update dependencies to create composer.lock
-	ynh_composer_exec --workdir="$workdir" --commands="install --no-dev" \
+	ynh_composer_exec --phpversion="${phpversion}" --workdir="$workdir" --commands="install --no-dev" \
 		|| ynh_die "Unable to update core dependencies with Composer."
 }
 
+
 # Install another version of php.
 #
 # usage: ynh_install_php --phpversion=phpversion [--package=packages]
@@ -96,6 +99,9 @@ ynh_install_php () {
 	ynh_add_app_dependencies --package="php${phpversion}-fpm"
 	ynh_add_app_dependencies --package="php$phpversion php${phpversion}-common $package"
 
+	# Set php7.0 back as the default version for php-cli.
+	update-alternatives --set php /usr/bin/php7.0
+
 	# Remove this extra repository after packages are installed
 	ynh_remove_extra_repo --name=extra_php_version
 
diff --git a/scripts/install b/scripts/install
index d60e5fa4..79224bf5 100644
--- a/scripts/install
+++ b/scripts/install
@@ -13,6 +13,10 @@ source /usr/share/yunohost/helpers
 # MANAGE SCRIPT FAILURE
 #=================================================
 
+ynh_clean_setup () {
+	### Remove this function if there's nothing to clean before calling the remove script.
+	read -p "key"
+}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
@@ -120,7 +124,7 @@ ynh_add_fpm_config --phpversion="7.2"
 
 chown -R "$app": "$final_path"
 
-ynh_install_composer --workdir="$final_path"
+ynh_install_composer --phpversion="7.2" --workdir="$final_path"
 
 #=================================================
 # SPECIFIC SETUP
diff --git a/scripts/upgrade b/scripts/upgrade
index 87b3e2f8..f048c099 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -141,7 +141,22 @@ ynh_add_fpm_config --phpversion="7.2"
 
 chown -R "$app": "$final_path"
 
-ynh_install_composer --workdir="$final_path"
+ynh_install_composer --phpversion="7.2" --workdir="$final_path"
+
+#=================================================
+# MODIFY A CONFIG FILE
+#=================================================
+
+config="$final_path/.env"
+cp ../conf/.env "$config"
+
+ynh_replace_string "__APP__"     "$app"      "$config"
+ynh_replace_string "__APP_KEY__"     "$app_key"      "$config"
+ynh_replace_string "__DOMAIN__"  "$domain"   "$config"
+ynh_replace_string "__PATH__"    "$path_url" "$config"
+ynh_replace_string "__DB_NAME__" "$db_name"  "$config"
+ynh_replace_string "__DB_USER__" "$db_user"  "$config"
+ynh_replace_string "__DB_PWD__"  "$db_pwd"   "$config"
 
 #=================================================
 # MODIFY A CONFIG FILE