diff --git a/README.md b/README.md
index 7d43c85..5051f3e 100644
--- a/README.md
+++ b/README.md
@@ -140,6 +140,7 @@ services:
           - "node.hostname==localhost"
           - "node.platform.os==linux"
           - "node.platform.arch==arm"
+          - "unique"
       replicas: 1
       resources:
         limits: