diff --git a/scripts/install b/scripts/install
index 79e991c..c71514f 100644
--- a/scripts/install
+++ b/scripts/install
@@ -101,8 +101,10 @@ ynh_mysql_setup_db $db_name $db_name
 
 ynh_app_setting_set $app final_path $final_path
 # Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source "$final_path"
-
+tmpdir="$(mktemp -d)"
+sudo wget -O "$tmpdir/ghost.zip" "https://ghost.org/zip/ghost-latest.zip"
+unzip "$tmpdir/ghost.zip" -d "$final_path/."
+sudo rm -R "$tmpdir/ghost.zip"
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index bd6b8be..0d954f9 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -77,9 +77,13 @@ path_url=$(ynh_normalize_url_path $path_url)
 tmpdir="$(mktemp -d)"
 # Backup the content folder to the temp dir
 cp -ar "$final_path/ghost/content" "$tmpdir"
+sudo rm -R "$tmpdir/ghost.zip"
 
 # Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source "$final_path"
+tmpdir1="$(mktemp -d)"
+sudo wget -O "$tmpdir1/ghost.zip" "https://ghost.org/zip/ghost-latest.zip"
+unzip "$tmpdir1/ghost.zip" -d "$final_path/."
+sudo rm -R "$tmpdir1/ghost.zip"
 
 # copy content folder back to the final_path
 sudo cp -ar "$tmpdir/content" "${final_path}"