diff --git a/scripts/_common.sh b/scripts/_common.sh
index 82f5f1c..78ced19 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -5,7 +5,7 @@
 #=================================================
 
 # dependencies used by the app
-pkg_dependencies="nodejs npm libpng16-16 libpng-dev pkg-config autoconf libtool build-essential nasm libx11-dev libxkbfile-dev yarnpkg"
+pkg_dependencies="nodejs npm libpng16-16 libpng-dev pkg-config autoconf libtool build-essential nasm libx11-dev libxkbfile-dev"
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/install b/scripts/install
index f9669cb..e3b0e00 100755
--- a/scripts/install
+++ b/scripts/install
@@ -68,6 +68,7 @@ ynh_app_setting_set --app=$app --key=port --value=$port
 ynh_script_progression --message="Installing dependencies..." --weight=60
 
 ynh_install_app_dependencies $pkg_dependencies
+ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
diff --git a/scripts/restore b/scripts/restore
index 4bdbeeb..0137904 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -93,6 +93,7 @@ ynh_script_progression --message="Reinstalling dependencies..." --weight=40
 
 # Define and install dependencies
 ynh_install_app_dependencies $pkg_dependencies
+ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"
 
 #=================================================
 # RESTORE SYSTEMD
diff --git a/scripts/upgrade b/scripts/upgrade
index 0f473c1..fc82473 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -80,6 +80,7 @@ ynh_add_nginx_config
 ynh_script_progression --message="Upgrading dependencies..." --weight=5
 
 ynh_install_app_dependencies $pkg_dependencies
+ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"
 
 #=================================================
 # CREATE DEDICATED USER