diff --git a/clusters/cl01tl/applications/tubearchivist/Chart.yaml b/clusters/cl01tl/applications/tubearchivist/Chart.yaml
index 60601fabb..1614737f3 100644
--- a/clusters/cl01tl/applications/tubearchivist/Chart.yaml
+++ b/clusters/cl01tl/applications/tubearchivist/Chart.yaml
@@ -25,7 +25,7 @@ dependencies:
     repository: https://bjw-s.github.io/helm-charts/
     version: 3.5.1
   - name: elasticsearch
-    version: 21.3.26
+    version: 21.4.0
     repository: https://charts.bitnami.com/bitnami
   - name: redis
     version: 19.6.4
diff --git a/clusters/cl01tl/platform/stalwart/Chart.yaml b/clusters/cl01tl/platform/stalwart/Chart.yaml
index 6c22dc666..6a7db9080 100644
--- a/clusters/cl01tl/platform/stalwart/Chart.yaml
+++ b/clusters/cl01tl/platform/stalwart/Chart.yaml
@@ -30,7 +30,7 @@ dependencies:
     version: 2.1.1
     repository: https://charts.bitnami.com/bitnami
   - name: elasticsearch
-    version: 21.3.26
+    version: 21.4.0
     repository: https://charts.bitnami.com/bitnami
   - name: postgres-cluster
     alias: postgres-16-cluster