diff --git a/wildduck/session-storage.yaml b/wildduck/session-storage.yaml
index 5d59318..48d1a83 100644
--- a/wildduck/session-storage.yaml
+++ b/wildduck/session-storage.yaml
@@ -28,6 +28,14 @@ spec:
   resources:
     limits:
       memory: 1Gi
+  topologySpreadConstraints:
+    - maxSkew: 1
+      topologyKey: topology.kubernetes.io/zone
+      whenUnsatisfiable: DoNotSchedule
+      labelSelector:
+        matchLabels:
+          app: session-storage
+          app.kubernetes.io/part-of: dragonfly
 ---
 apiVersion: monitoring.coreos.com/v1
 kind: PodMonitor