diff --git a/apps/coder/Chart.yaml b/apps/coder/Chart.yaml
index 4fa02f1e..039ad973 100644
--- a/apps/coder/Chart.yaml
+++ b/apps/coder/Chart.yaml
@@ -7,7 +7,7 @@ version: 1.0.0
 
 dependencies:
 - name: postgresql
-  version: 16.7.27
+  version: 18.2.0
   repository: oci://registry-1.docker.io/bitnamicharts
 - name: coder
   version: 2.29.1
diff --git a/apps/grafana/Chart.yaml b/apps/grafana/Chart.yaml
index c6222435..2e22b6d7 100644
--- a/apps/grafana/Chart.yaml
+++ b/apps/grafana/Chart.yaml
@@ -7,7 +7,7 @@ version: 1.0.0
 
 dependencies:
 - name: postgresql
-  version: 16.7.27
+  version: 18.2.0
   repository: oci://registry-1.docker.io/bitnamicharts
 - name: grafana
   version: 10.4.1