diff --git a/config/channels/in-memory-channel/deployments/dispatcher.yaml b/config/channels/in-memory-channel/deployments/dispatcher.yaml
index 33084d25484..0d6af518d4b 100644
--- a/config/channels/in-memory-channel/deployments/dispatcher.yaml
+++ b/config/channels/in-memory-channel/deployments/dispatcher.yaml
@@ -30,6 +30,14 @@ spec:
     metadata:
       labels: *labels
     spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - podAffinityTerm:
+              labelSelector:
+                matchLabels: *labels
+              topologyKey: kubernetes.io/hostname
+            weight: 100
       serviceAccountName: imc-dispatcher
       containers:
       - name: dispatcher
diff --git a/openshift/release/knative-eventing-ci.yaml b/openshift/release/knative-eventing-ci.yaml
index 0c81161b826..88c452b4159 100644
--- a/openshift/release/knative-eventing-ci.yaml
+++ b/openshift/release/knative-eventing-ci.yaml
@@ -4917,6 +4917,14 @@ spec:
     metadata:
       labels: *labels
     spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - podAffinityTerm:
+              labelSelector:
+                matchLabels: *labels
+              topologyKey: kubernetes.io/hostname
+            weight: 100
       serviceAccountName: imc-dispatcher
       containers:
       - name: dispatcher