diff --git a/charts/ehrbase/Chart.lock b/charts/ehrbase/Chart.lock
index da435d5..6143e17 100644
--- a/charts/ehrbase/Chart.lock
+++ b/charts/ehrbase/Chart.lock
@@ -1,9 +1,9 @@
 dependencies:
 - name: postgresql
   repository: oci://registry-1.docker.io/bitnamicharts
-  version: 15.5.29
+  version: 15.5.36
 - name: redis
   repository: oci://registry-1.docker.io/bitnamicharts
-  version: 20.1.0
-digest: sha256:4545a4815879ad3131f05eeea6f15f90c66d2d3fa618388c6b87d755755e7285
-generated: "2024-09-10T23:06:25.7750314+02:00"
+  version: 20.1.5
+digest: sha256:a2155d84c92c8a16034c0f796cb34e241dfca944a42927311d2463c1fb4bd990
+generated: "2024-09-28T00:34:01.3133526+02:00"
diff --git a/charts/ehrbase/Chart.yaml b/charts/ehrbase/Chart.yaml
index 1d9297f..567d035 100644
--- a/charts/ehrbase/Chart.yaml
+++ b/charts/ehrbase/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: ehrbase
-version: 0.4.0
+version: 0.4.1
 kubeVersion: ">=1.26"
 description: EHRbase is an open source software backend for clinical application systems and electronic health records.
 type: application
diff --git a/charts/ehrbase/templates/_helpers.tpl b/charts/ehrbase/templates/_helpers.tpl
index 21de9de..12c6af8 100644
--- a/charts/ehrbase/templates/_helpers.tpl
+++ b/charts/ehrbase/templates/_helpers.tpl
@@ -199,7 +199,7 @@ Return the Redis password key
 */}}
 {{- define "ehrbase.redisSecretPasswordKey" -}}
 {{- if and .Values.redis.enabled .Values.redis.auth.existingSecret }}
-{{- .Values.redis.auth.existingSecretPasswordKey }}
+{{- default "redis-password" .Values.redis.auth.existingSecretPasswordKey }}
 {{- else if and (not .Values.redis.enabled) .Values.externalRedis.existingSecret }}
 {{- default "redis-password" .Values.externalRedis.existingSecretPasswordKey }}
 {{- else -}}