diff --git a/scripts/restore b/scripts/restore
index 50a0ea5..5969136 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -73,7 +73,6 @@ ynh_script_progression --message="Reinstalling dependencies..." --weight=5
 # Define and install dependencies
 ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 ynh_exec_warn_less 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 THE NGINX CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 1d93d33..7ec44c3 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -105,8 +105,6 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading source files..."
 
-	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path" --keep=".config/default.yml"
 	pushd "$final_path"
 		git checkout master
 		git pull --quiet