diff --git a/demos/agent-secret/agent-secret.yaml.tmpl b/demos/agent-secret/agent-secret.yaml.tmpl
index 226f7b864..ac2c9c6a4 100644
--- a/demos/agent-secret/agent-secret.yaml.tmpl
+++ b/demos/agent-secret/agent-secret.yaml.tmpl
@@ -67,8 +67,9 @@ spec:
   - name: agent-secret
     image: ko://github.com/agent-substrate/substrate/demos/agent-secret
     command: ["/ko-app/agent-secret"]
-    ports:
-    - containerPort: 80
+    env:
+    - name: PORT
+      value: "80"
   workerSelector:
     matchLabels:
       workload: agent-secret
diff --git a/demos/sandbox/sandbox.yaml.tmpl b/demos/sandbox/sandbox.yaml.tmpl
index 46815e094..b99378a24 100644
--- a/demos/sandbox/sandbox.yaml.tmpl
+++ b/demos/sandbox/sandbox.yaml.tmpl
@@ -42,8 +42,6 @@ spec:
   - name: sandbox
     image: ko://github.com/agent-substrate/substrate/demos/sandbox
     command: ["/ko-app/sandbox"]
-    ports:
-    - containerPort: 80
     env:
     - name: PORT
       value: "80"