diff --git a/charts/metabase/Chart.yaml b/charts/metabase/Chart.yaml
index 1fbac8d..3d89c74 100644
--- a/charts/metabase/Chart.yaml
+++ b/charts/metabase/Chart.yaml
@@ -34,6 +34,6 @@ dependencies:
     version: 1.5.21
     repository: https://inseefrlab.github.io/helm-charts-interactive-services
   - name: postgresql
-    version: 11.6.15
+    version: 15.1.2
     repository:  https://charts.bitnami.com/bitnami
     enabled: true
diff --git a/charts/redash/Chart.yaml b/charts/redash/Chart.yaml
index 180ebcd..ff9a4a2 100644
--- a/charts/redash/Chart.yaml
+++ b/charts/redash/Chart.yaml
@@ -35,7 +35,7 @@ dependencies:
     version: 3.0.0
     repository:  https://getredash.github.io/contrib-helm-chart/
   - name: postgresql
-    version: 11.6.15
+    version: 15.1.2
     repository:  https://charts.bitnami.com/bitnami
   - name: library-chart
     version: 1.5.19