diff --git a/deploy/worker.yml b/deploy/worker.yml
index a8f0218..8fbf118 100644
--- a/deploy/worker.yml
+++ b/deploy/worker.yml
@@ -19,7 +19,7 @@ spec:
       containers:
       - name: worker
         image: DEPLOY_IMAGE_TAG
-        command: ["sh", "-c", "celery -A postamates.celery:app worker", "-l", "info", "--concurrency=2"]
+        command: ["sh", "-c", "celery -A postamates.celery:app worker", "-l", "info", "--concurrency=1"]
         envFrom:
           - configMapRef:
               name: postamates-configmap