diff --git a/playbooks/javascript/pre.yaml b/playbooks/javascript/pre.yaml
index 747029e8..4f6a0547 100644
--- a/playbooks/javascript/pre.yaml
+++ b/playbooks/javascript/pre.yaml
@@ -5,5 +5,6 @@
       bindep_dir: "{{ zuul_work_dir }}"
     - test-setup
     - install-nodejs
+    - install-yarn
     - revoke-sudo
     - install-javascript-packages