diff --git a/manifest.json b/manifest.json
index 9409e47..84bb6fd 100644
--- a/manifest.json
+++ b/manifest.json
@@ -9,12 +9,12 @@
 		"en": "Mastodon is a free, open-source social network.",
 		"fr": "Mastodon est un réseau social gratuit et open source."
 	},
-	"version": "0.6 dev",
+	"version": "1.1.1",
 	"url": "https://github.com/tootsuite/mastodon",
-	"license": "AGPL",
+	"license": "AGPL v3.0",
 	"maintainer": {
-		"name": "cyp",
-		"email": "cyp@rouquin.me"
+		"name": "cyp, nemsia",
+		"email": "cyp@rouquin.me, nemsia@nemsia.org"
 	},
 	"multi_instance": false,
 	"services": [
@@ -59,6 +59,15 @@
                 },
                 "example": "adminpassword"
             },
+			{
+				"name": "language",
+				"ask": {
+					"en": "Choose the application language",
+					"fr": "Choisissez la langue de l'application"
+				},
+				"choices": ["en_EN", "fr_FR"],
+				"default": "fr_FR"
+			},
 			{
 				"name": "is_public",
 				"ask": {
diff --git a/scripts/install b/scripts/install
index 75c2cfd..2e68844 100644
--- a/scripts/install
+++ b/scripts/install
@@ -17,6 +17,7 @@ domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
 admin_mastodon=$YNH_APP_ARG_ADMIN
 admin_pass=$YNH_APP_ARG_PASSWD
+language=$YNH_APP_ARG_LANGUAGE
 is_public=$YNH_APP_ARG_IS_PUBLIC
 
 app=$YNH_APP_INSTANCE_NAME
@@ -35,6 +36,7 @@ ynh_app_setting_set $app domain $domain
 ynh_app_setting_set $app path $path
 ynh_app_setting_set $app admin $admin_mastodon
 ynh_app_setting_set $app pass $admin_pass
+ynh_app_setting_set $app language $language
 ynh_app_setting_set $app is_public $is_public
 
 # Create user unix
@@ -136,6 +138,9 @@ sudo sed -i "s@DB_USER=postgres@DB_USER=${app}@g" "${final_path}/live/.env.produ
 sudo sed -i "s@DB_NAME=postgres@DB_NAME=${app}_production@g" "${final_path}/live/.env.production"
 sudo sed -i "s@LOCAL_DOMAIN=example.com@LOCAL_DOMAIN=${domain}@g" "${final_path}/live/.env.production"
 
+language="$(echo $language | head -c 2)"
+sudo sed -i "s@# DEFAULT_LOCALE=de@DEFAULT_LOCALE=${language}@g" "${final_path}/live/.env.production"
+
 sudo sed -i "s@PAPERCLIP_SECRET=@PAPERCLIP_SECRET=$(head -n128 /dev/urandom | tr -dc -d 'a-z0-9' | head -c128)@g" "${final_path}/live/.env.production"
 sudo sed -i "s@SECRET_KEY_BASE=@SECRET_KEY_BASE=$(head -n128 /dev/urandom | tr -dc -d 'a-z0-9' | head -c128)@g" "${final_path}/live/.env.production"
 sudo sed -i "s@OTP_SECRET=@OTP_SECRET=$(head -n128 /dev/urandom | tr -dc -d 'a-z0-9' | head -c128)@g" "${final_path}/live/.env.production"