diff --git a/deployments/sgx_plugin/base/intel-sgx-plugin.yaml b/deployments/sgx_plugin/base/intel-sgx-plugin.yaml
index 078cbf3de..b6faf0c99 100644
--- a/deployments/sgx_plugin/base/intel-sgx-plugin.yaml
+++ b/deployments/sgx_plugin/base/intel-sgx-plugin.yaml
@@ -18,6 +18,7 @@ spec:
       labels:
         app: intel-sgx-plugin
     spec:
+      priorityClassName: system-node-critical
       automountServiceAccountToken: false
       containers:
       - name: intel-sgx-plugin
diff --git a/pkg/controllers/sgx/controller_test.go b/pkg/controllers/sgx/controller_test.go
index 971b5be86..a80b62989 100644
--- a/pkg/controllers/sgx/controller_test.go
+++ b/pkg/controllers/sgx/controller_test.go
@@ -74,6 +74,7 @@ func (c *controller) newDaemonSetExpected(rawObj client.Object) *apps.DaemonSet
 					},
 				},
 				Spec: v1.PodSpec{
+					PriorityClassName:            "system-node-critical",
 					AutomountServiceAccountToken: &no,
 					Containers: []v1.Container{
 						{