diff --git a/pretix-helm/Chart.lock b/pretix-helm/Chart.lock
index e665f56..6807566 100644
--- a/pretix-helm/Chart.lock
+++ b/pretix-helm/Chart.lock
@@ -1,9 +1,9 @@
 dependencies:
 - name: postgresql
   repository: https://charts.bitnami.com/bitnami
-  version: 15.1.2
+  version: 15.5.5
 - name: redis
   repository: https://charts.bitnami.com/bitnami
   version: 19.0.1
-digest: sha256:e522409698486fdf3d11b5bdb2b8225a1b3e41175e239c81226079a57a40043f
-generated: "2024-03-23T20:46:39.245636+01:00"
+digest: sha256:5b5553aa3a1197616be077474e6f57277e6e8e5f839830ba1e6466108957952c
+generated: "2024-06-12T17:49:23.450756057Z"
diff --git a/pretix-helm/Chart.yaml b/pretix-helm/Chart.yaml
index f8b92ff..7e447be 100644
--- a/pretix-helm/Chart.yaml
+++ b/pretix-helm/Chart.yaml
@@ -8,7 +8,7 @@ keywords:
   - event-tickets
 dependencies:
   - name: postgresql
-    version: "15.1.2"
+    version: "15.5.5"
     repository: "https://charts.bitnami.com/bitnami"
     condition: postgresql.enabled
   - name: redis