diff --git a/deployment.yaml b/deployment.yaml
index 787a635c..f2e31e3e 100644
--- a/deployment.yaml
+++ b/deployment.yaml
@@ -392,6 +392,15 @@ spec:
       labels:
         app: zt-module-databus
     spec:
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+              - matchExpressions:
+                  - key: kubernetes.io/hostname
+                    operator: In
+                    values:
+                      - node-3
       dnsPolicy: None
       dnsConfig:
         nameservers: