diff --git a/charts/nightscout/Chart.lock b/charts/nightscout/Chart.lock
index 9e0d8f8c2..f995c668a 100644
--- a/charts/nightscout/Chart.lock
+++ b/charts/nightscout/Chart.lock
@@ -4,6 +4,6 @@ dependencies:
   version: 1.5.1
 - name: mongodb
   repository: https://charts.bitnami.com/bitnami
-  version: 16.3.1
-digest: sha256:0a731a11c1c447da9e736c64f9dec90d6241a64c4fb0a6ec58f86f3db0923c9f
-generated: "2024-12-02T01:34:05.253005668Z"
+  version: 16.4.1
+digest: sha256:cf1785d0cbfa15f563420e4c58a53e1d1737a07b962f5c227f2b51f6f2c60443
+generated: "2025-01-16T04:05:40.628747834Z"
diff --git a/charts/nightscout/Chart.yaml b/charts/nightscout/Chart.yaml
index f92c1b48c..836abf61c 100644
--- a/charts/nightscout/Chart.yaml
+++ b/charts/nightscout/Chart.yaml
@@ -18,7 +18,7 @@ dependencies:
     repository: https://bjw-s.github.io/helm-charts
     version: 1.5.1
   - name: mongodb
-    version: 16.3.1
+    version: 16.4.1
     repository: https://charts.bitnami.com/bitnami
 sources:
   - https://github.com/nightscout/cgm-remote-monitor