diff --git a/manifest.toml b/manifest.toml
index 1c9a479..aa4951f 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -66,5 +66,10 @@ ram.runtime = "1G"
     [resources.apt]
     packages = "mailutils, mariadb-server"
 
+    [resources.apt.extras.yarn]
+    repo = "deb https://dl.yarnpkg.com/debian/ stable main"
+    key = "https://dl.yarnpkg.com/debian/pubkey.gpg"
+    packages = ["yarn"]
+    
     [resources.database]
     type = "mysql"