diff --git a/stable/ghost/Chart.yaml b/stable/ghost/Chart.yaml
index 18af31bf048b..6101bc169451 100644
--- a/stable/ghost/Chart.yaml
+++ b/stable/ghost/Chart.yaml
@@ -1,5 +1,5 @@
 name: ghost
-version: 4.0.12
+version: 4.0.13
 appVersion: 1.25.3
 description: A simple, powerful publishing platform that allows you to share your
   stories with the world
diff --git a/stable/ghost/README.md b/stable/ghost/README.md
index 4fc286d05c72..369de25405c7 100644
--- a/stable/ghost/README.md
+++ b/stable/ghost/README.md
@@ -62,6 +62,7 @@ The following table lists the configurable parameters of the Ghost chart and the
 | `ghostBlogTitle`              | Ghost Blog name                                               | `User's Blog`                                            |
 | `allowEmptyPassword`          | Allow DB blank passwords                                      | `yes`                                                    |
 | `externalDatabase.host`       | Host of the external database                                 | `nil`                                                    |
+| `externalDatabase.port`       | Port of the external database                                 | `nil`                                                    |
 | `externalDatabase.user`       | Existing username in the external db                          | `bn_ghost`                                               |
 | `externalDatabase.password`   | Password for the above username                               | `nil`                                                    |
 | `externalDatabase.database`   | Name of the existing database                                 | `bitnami_ghost`                                          |
diff --git a/stable/ghost/templates/deployment.yaml b/stable/ghost/templates/deployment.yaml
index 0c3f8d8f4ca4..f263a7897b1c 100644
--- a/stable/ghost/templates/deployment.yaml
+++ b/stable/ghost/templates/deployment.yaml
@@ -48,8 +48,10 @@ spec:
         {{- else }}
           value: {{ .Values.externalDatabase.host | quote }}
         {{- end }}
+        {{- if and (not .Values.mariadb.enabled) .Values.externalDatabase.port }}
         - name: MARIADB_PORT_NUMBER
-          value: "3306"
+          value: {{ .Values.externalDatabase.port | quote }}
+        {{- end }}
         - name: GHOST_DATABASE_NAME
         {{- if .Values.mariadb.enabled }}
           value: {{ .Values.mariadb.db.name | quote }}
diff --git a/stable/ghost/values.yaml b/stable/ghost/values.yaml
index bbfdd160b2bb..7ba1cd67e929 100644
--- a/stable/ghost/values.yaml
+++ b/stable/ghost/values.yaml
@@ -82,6 +82,9 @@ externalDatabase:
   ## Database host
   # host:
 
+  ## Database port
+  # port:
+
   ## Database user
   # user: bn_ghost