diff --git a/services/openclaw/deployment.yaml b/services/openclaw/deployment.yaml
index 2623f78f..2dde6353 100644
--- a/services/openclaw/deployment.yaml
+++ b/services/openclaw/deployment.yaml
@@ -44,6 +44,13 @@ spec:
                     operator: In
                     values:
                       - "true"
+                  - key: kubernetes.io/hostname
+                    operator: NotIn
+                    values:
+                      - titan-13
+                      - titan-15
+                      - titan-17
+                      - titan-19
           preferredDuringSchedulingIgnoredDuringExecution:
             - weight: 100
               preference:
diff --git a/services/openclaw/oauth2-proxy-agent.yaml b/services/openclaw/oauth2-proxy-agent.yaml
index 43352373..dedeccab 100644
--- a/services/openclaw/oauth2-proxy-agent.yaml
+++ b/services/openclaw/oauth2-proxy-agent.yaml
@@ -54,8 +54,9 @@ spec:
                   - key: kubernetes.io/arch
                     operator: In
                     values: ["arm64"]
-                  - key: longhorn-host
-                    operator: DoesNotExist
+                  - key: kubernetes.io/hostname
+                    operator: NotIn
+                    values: ["titan-13", "titan-15", "titan-17", "titan-19"]
           preferredDuringSchedulingIgnoredDuringExecution:
             - weight: 100
               preference: