diff --git a/deploy/helm/pieced-threema-gateway/Chart.yaml b/deploy/helm/pieced-threema-gateway/Chart.yaml
index 281ad0b..8dff039 100644
--- a/deploy/helm/pieced-threema-gateway/Chart.yaml
+++ b/deploy/helm/pieced-threema-gateway/Chart.yaml
@@ -2,5 +2,5 @@ apiVersion: v2
 name: pieced-threema-gateway
 description: PieCed IT central Threema Gateway relay
 type: application
-version: 0.1.4
-appVersion: "0.1.4"
+version: 0.1.5
+appVersion: "0.1.5"
diff --git a/deploy/helm/pieced-threema-gateway/values.yaml b/deploy/helm/pieced-threema-gateway/values.yaml
index c84857b..9143cf7 100644
--- a/deploy/helm/pieced-threema-gateway/values.yaml
+++ b/deploy/helm/pieced-threema-gateway/values.yaml
@@ -6,7 +6,7 @@ namespace: threema-gateway
 
 image:
   repository: registry.c5ai.ch/pieced/pieced-threema-gateway
-  tag: "0.1.4"
+  tag: "0.1.5"
   pullPolicy: IfNotPresent
 
 # Pull from registry.c5ai.ch — matches operator + portal pattern.
@@ -39,7 +39,11 @@ postgres:
   instances: 1
   storage:
     size: 5Gi
-    storageClass: longhorn-luks2
+    # Matches portal-db, litellm-pg, zitadel-pg, twenty-pg in pieced-gitops.
+    # The relay's `messages` log row payload is small (no message bodies,
+    # ~80 B per row), so 5Gi covers ~50 M messages — far beyond what a
+    # single tenant's billing window will need.
+    storageClass: longhorn
   resources:
     requests:
       cpu: 100m