diff --git a/helm/bootzooka/Chart.yaml b/helm/bootzooka/Chart.yaml
index 1d89e9d55..469ea55eb 100644
--- a/helm/bootzooka/Chart.yaml
+++ b/helm/bootzooka/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: "1.0"
 description: "A Helm chart for Bootzooka"
 name: bootzooka
-version: 0.2.1
+version: 0.2.2
 type: application
 keywords:
  - scala
@@ -21,7 +21,7 @@ maintainers:
 icon: https://raw.githubusercontent.com/softwaremill/bootzooka/master/banner.png
 dependencies:
  - name: postgresql
-   version: ^9
+   version: ^10
    repository: https://charts.bitnami.com/bitnami
    condition: postgresql.enabled
 annotations:
diff --git a/helm/bootzooka/README.md b/helm/bootzooka/README.md
index 0ccbda90b..372d3c598 100644
--- a/helm/bootzooka/README.md
+++ b/helm/bootzooka/README.md
@@ -1,6 +1,6 @@
 # bootzooka
 
-![Version: 0.2.1](https://img.shields.io/badge/Version-0.2.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.0](https://img.shields.io/badge/AppVersion-1.0-informational?style=flat-square)
+![Version: 0.2.2](https://img.shields.io/badge/Version-0.2.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.0](https://img.shields.io/badge/AppVersion-1.0-informational?style=flat-square)
 
 A Helm chart for Bootzooka
 
@@ -49,6 +49,7 @@ The following table lists the configurable parameters of the chart and the defau
 | bootzooka.ingress.tls[0].hosts[0] | string | `"bootzooka.example.com"` |  |
 | bootzooka.ingress.tls[0].secretName | string | `"bootzooka-tls"` |  |
 | bootzooka.ingress.tls_enabled | bool | `false` |  |
+| bootzooka.javaOpts | string | `"-XX:MaxRAMPercentage=60"` |  |
 | bootzooka.nameOverride | string | `""` |  |
 | bootzooka.nodeSelector | object | `{}` |  |
 | bootzooka.replicaCount | int | `1` |  |
diff --git a/helm/bootzooka/templates/configmap.yaml b/helm/bootzooka/templates/configmap.yaml
index e88944b6c..847879af6 100644
--- a/helm/bootzooka/templates/configmap.yaml
+++ b/helm/bootzooka/templates/configmap.yaml
@@ -3,6 +3,7 @@ kind: ConfigMap
 metadata:
   name: {{ include "bootzooka.fullname" . }}-config
 data:
+  JAVA_OPTS: "{{ .Values.bootzooka.javaOpts }}"
   SMTP_ENABLED: "{{ .Values.bootzooka.smtp.enabled }}"
   SMTP_HOST: "{{ .Values.bootzooka.smtp.host }}"
   SMTP_PORT: "{{ .Values.bootzooka.smtp.port }}"
diff --git a/helm/bootzooka/values.yaml b/helm/bootzooka/values.yaml
index df94c0e98..6966bd451 100644
--- a/helm/bootzooka/values.yaml
+++ b/helm/bootzooka/values.yaml
@@ -38,6 +38,7 @@ bootzooka:
     username: "server.example.com"
     from: "hello@bootzooka.example.com"
     password: "bootzooka"
+  javaOpts: "-XX:MaxRAMPercentage=60"
 
   image:
     repository: softwaremill/bootzooka