diff --git a/charts/sapl/v0.2.0/templates/deployment.yaml b/charts/sapl/v0.2.0/templates/deployment.yaml
index 56cc123..fe56b44 100644
--- a/charts/sapl/v0.2.0/templates/deployment.yaml
+++ b/charts/sapl/v0.2.0/templates/deployment.yaml
@@ -124,6 +124,19 @@ spec:
                     values:
                     - {{ .Release.Name }}
                 topologyKey: kubernetes.io/hostname
+            - weight: 50
+              podAffinityTerm:
+                labelSelector:
+                  matchExpressions:
+                  - key: app.kubernetes.io/name
+                    operator: In
+                    values:
+                    - postgresql
+                  - key: app.kubernetes.io/instance
+                    operator: In
+                    values:
+                    - {{ .Release.Name }}
+                topologyKey: kubernetes.io/hostname
       {{- with .Values.affinity }}
         {{- toYaml . | nindent 8 }}
       {{- end }}