diff --git a/helm/dendrite/Chart.yaml b/helm/dendrite/Chart.yaml
index 6a428e00f..182f53c39 100644
--- a/helm/dendrite/Chart.yaml
+++ b/helm/dendrite/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: dendrite
-version: "0.12.2"
+version: "0.12.3"
 appVersion: "0.12.0"
 description: Dendrite Matrix Homeserver
 type: application
diff --git a/helm/dendrite/templates/configmap_grafana_dashboards.yaml b/helm/dendrite/templates/configmap_grafana_dashboards.yaml
index e2abc4909..9ab77e3b3 100644
--- a/helm/dendrite/templates/configmap_grafana_dashboards.yaml
+++ b/helm/dendrite/templates/configmap_grafana_dashboards.yaml
@@ -1,5 +1,5 @@
 {{- if .Values.grafana.dashboards.enabled }}
-{{- range $path, $bytes := .Files.Glob "grafana_dashboards/*" }}
+{{- range $path, $bytes := .Files.Glob "grafana_dashboards/*.json" }}
 ---
 apiVersion: v1
 kind: ConfigMap