diff --git a/kubernetes/coredns.yaml.sed b/kubernetes/coredns.yaml.sed
index e12813b..4910c04 100644
--- a/kubernetes/coredns.yaml.sed
+++ b/kubernetes/coredns.yaml.sed
@@ -105,15 +105,13 @@ spec:
         kubernetes.io/os: linux
       affinity:
          podAntiAffinity:
-           preferredDuringSchedulingIgnoredDuringExecution:
-           - weight: 100
-             podAffinityTerm:
-               labelSelector:
-                 matchExpressions:
-                   - key: k8s-app
-                     operator: In
-                     values: ["kube-dns"]
-               topologyKey: kubernetes.io/hostname
+           requiredDuringSchedulingIgnoredDuringExecution:
+           - labelSelector:
+               matchExpressions:
+               - key: k8s-app
+                 operator: In
+                 values: ["kube-dns"]
+             topologyKey: kubernetes.io/hostname
       containers:
       - name: coredns
         image: coredns/coredns:1.8.6