diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 333019d..f04fe90 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -1,7 +1,7 @@
 services:
   # PostgreSQL Database
   postgres:
-    image: postgres:16-alpine
+    image: postgres:18-alpine
     container_name: renovate-dashboard-db
     restart: unless-stopped
     environment:
diff --git a/helm/renovate-dashboard/values.yaml b/helm/renovate-dashboard/values.yaml
index 703378d..2b068d6 100644
--- a/helm/renovate-dashboard/values.yaml
+++ b/helm/renovate-dashboard/values.yaml
@@ -213,7 +213,7 @@ postgresql:
   
   image:
     repository: postgres
-    tag: "16-alpine"
+    tag: "18-alpine"
     pullPolicy: IfNotPresent
   
   # PostgreSQL credentials