diff --git a/manifest.toml b/manifest.toml
index 198e74c..841ef16 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -78,7 +78,7 @@ ram.runtime = "50M" # FIXME: replace with an **estimate** minimum ram requiremen
     [resources.apt]
     packages = "imagemagick, ffmpeg, libpq-dev, libxml2-dev, libxslt1-dev, file, git-core, g++, libprotobuf-dev, protobuf-compiler, pkg-config, gcc, autoconf, bison, build-essential, libssl-dev, libyaml-dev, libreadline6-dev, zlib1g-dev, libncurses5-dev, libffi-dev, libgdbm3|libgdbm6, libgdbm-dev, redis-tools, redis-server, postgresql, postgresql-contrib, libidn11-dev, libicu-dev, libjemalloc-dev, curl, apt-transport-https"
 
-        [resources.apt.extras]
+        [resources.apt.extras.yarn]
         repo = "deb https://dl.yarnpkg.com/debian/ stable main"
         key = "https://dl.yarnpkg.com/debian/pubkey.gpg"
         packages = "yarn"