diff --git a/charts/dependency-track/README.md b/charts/dependency-track/README.md
index 6094d8b..dd56b30 100644
--- a/charts/dependency-track/README.md
+++ b/charts/dependency-track/README.md
@@ -33,7 +33,7 @@ Dependency-Track is an intelligent Software Supply Chain Component Analysis plat
 | frontend | object | `{"affinity":{},"emptyDir":{"sizeLimit":"8Gi"},"enabled":true,"env":[{"name":"API_BASE_URL","value":""}],"fullnameOverride":"","image":{"pullPolicy":"IfNotPresent","repository":"dependencytrack/frontend","tag":"4.3.1"},"initContainers":[],"livenessProbe":{"enabled":true,"failureThreshold":3,"initialDelaySeconds":60,"path":"/","periodSeconds":10,"successThreshold":1,"timeoutSeconds":2},"nameOverride":"","nodeSelector":{},"readinessProbe":{"enabled":true,"failureThreshold":3,"initialDelaySeconds":60,"path":"/","periodSeconds":10,"successThreshold":1,"timeoutSeconds":2},"replicaCount":2,"resources":{"limits":{"cpu":1,"memory":"512Mi"},"requests":{"cpu":"100m","memory":"128Mi"}},"securityContext":{"allowPrivilegeEscalation":false,"runAsUser":101},"service":{"annotations":{},"port":80,"type":"ClusterIP"},"serviceAccount":{"annotations":{},"create":true,"name":"frontend-serviceaccount"},"tolerations":[]}` | config of the frontend |
 | global | object | `{"imageRegistry":"docker.io"}` | global configuration |
 | ingress | object | `{"annotations":{},"enabled":false,"host":"chart-example.local","tls":{"enabled":false,"secretName":""}}` | configuration of ingress |
-| postgresql | object | `{"enabled":true,"postgresqlDatabase":"deptrack","postgresqlPassword":"deptrack","postgresqlUsername":"deptrack"}` | configuration of postgres |
+| postgresql | object | `{"enabled":true,"postgresqlDatabase":"deptrack","postgresqlPassword":"deptrack","postgresqlUsername":"deptrack","postgresqlHost":"<optional>" }` | configuration of postgres |
 
 ----------------------------------------------
 Autogenerated from chart metadata using [helm-docs v1.5.0](https://github.com/norwoodj/helm-docs/releases/v1.5.0)
diff --git a/charts/dependency-track/templates/backend/deployment.yaml b/charts/dependency-track/templates/backend/deployment.yaml
index 1ff074d..75f5a75 100644
--- a/charts/dependency-track/templates/backend/deployment.yaml
+++ b/charts/dependency-track/templates/backend/deployment.yaml
@@ -35,6 +35,7 @@ spec:
         - name: ALPINE_DATA_DIRECTORY
           value: "/data"
         {{- if .Values.postgresql.enabled }}
+        {{- if not .Values.postgresqlHost  }}
         - name: ALPINE_DATABASE_MODE
           value: "external"
         - name: ALPINE_DATABASE_DRIVER
@@ -49,6 +50,24 @@ spec:
         - name: ALPINE_DATABASE_USERNAME
           value: {{ .Values.postgresql.postgresqlUsername }}
         {{- end }}
+        {{- end }}
+        {{- if not .Values.postgresql.enabled }}
+        {{- if .Values.postgresql.postgresqlHost  }}
+        - name: ALPINE_DATABASE_MODE
+          value: "external"
+        - name: ALPINE_DATABASE_DRIVER
+          value: "org.postgresql.Driver"
+        - name: ALPINE_DATABASE_URL
+          value: jdbc:postgresql://{{ .Values.postgresql.postgresqlHost}}/{{ .Values.postgresql.postgresqlDatabase }}
+        - name: ALPINE_DATABASE_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ .Release.Name }}-postgresql
+              key: postgresql-password
+        - name: ALPINE_DATABASE_USERNAME
+          value: {{ .Values.postgresql.postgresqlUsername }}
+        {{- end }}
+        {{- end }}
         {{- with .Values.apiserver.env }}
         {{- toYaml . | nindent 8 }}
         {{- end }}
diff --git a/charts/dependency-track/values.yaml b/charts/dependency-track/values.yaml
index dd55ba3..516af42 100644
--- a/charts/dependency-track/values.yaml
+++ b/charts/dependency-track/values.yaml
@@ -175,3 +175,4 @@ postgresql:
   postgresqlUsername: deptrack
   postgresqlPassword: deptrack
   postgresqlDatabase: deptrack
+  # postgresqlHost: # configure for external postgresql database. Set enabled to false.