diff --git a/postgresql/Chart.yaml b/postgresql/Chart.yaml
index 6d52ec027..b9ee4aa1c 100644
--- a/postgresql/Chart.yaml
+++ b/postgresql/Chart.yaml
@@ -12,10 +12,10 @@
 
 ---
 apiVersion: v1
-appVersion: v9.6
+appVersion: v14.5
 description: OpenStack-Helm PostgreSQL
 name: postgresql
-version: 0.1.17
+version: 0.1.18
 home: https://www.postgresql.org
 sources:
   - https://github.com/postgres/postgres
diff --git a/postgresql/templates/bin/_start.sh.tpl b/postgresql/templates/bin/_start.sh.tpl
index 14d56a273..db49a1dea 100644
--- a/postgresql/templates/bin/_start.sh.tpl
+++ b/postgresql/templates/bin/_start.sh.tpl
@@ -37,4 +37,4 @@ set -x
 
 bash /tmp/archive_cleanup.sh &
 
-exec /docker-entrypoint.sh postgres -c config_file=/tmp/postgresql.conf
+exec /usr/local/bin/docker-entrypoint.sh postgres -c config_file=/tmp/postgresql.conf
diff --git a/postgresql/values.yaml b/postgresql/values.yaml
index 1df9275ca..3a077dbb4 100644
--- a/postgresql/values.yaml
+++ b/postgresql/values.yaml
@@ -155,12 +155,12 @@ pod:
 # using dockerhub postgresql: https://hub.docker.com/r/library/postgres/tags/
 images:
   tags:
-    postgresql: "docker.io/library/postgres:9.6"
+    postgresql: "docker.io/library/postgres:14.5"
     dep_check: quay.io/airshipit/kubernetes-entrypoint:v1.0.0
     image_repo_sync: docker.io/library/docker:17.07.0
     ks_user: docker.io/openstackhelm/heat:stein-ubuntu_bionic
     prometheus_postgresql_exporter: docker.io/wrouesnel/postgres_exporter:v0.4.6
-    prometheus_postgresql_exporter_create_user: "docker.io/library/postgres:9.5"
+    prometheus_postgresql_exporter_create_user: "docker.io/library/postgres:14.5"
     postgresql_backup: "quay.io/airshipit/porthole-postgresql-utility:latest-ubuntu_bionic"
   pull_policy: "IfNotPresent"
   local_registry:
@@ -309,7 +309,7 @@ conf:
     timezone: 'UTC'
     track_commit_timestamp: 'on'
     track_functions: 'all'
-    wal_keep_segments: '16'
+    wal_keep_size: '256'
     wal_level: 'hot_standby'
     wal_log_hints: 'on'
     hba_file: '/tmp/pg_hba.conf'
diff --git a/releasenotes/notes/postgresql.yaml b/releasenotes/notes/postgresql.yaml
index c0110677a..85bec52b4 100644
--- a/releasenotes/notes/postgresql.yaml
+++ b/releasenotes/notes/postgresql.yaml
@@ -18,4 +18,5 @@ postgresql:
   - 0.1.15 Migrated CronJob resource to batch/v1 API version
   - 0.1.16 Added OCI registry authentication
   - 0.1.17 Added empty verify_databases_backup_archives() function implementation to match updated backup_databases() function in helm-toolkit
+  - 0.1.18 Updated postgres to 14.5 and replaced deprecated config item wal_keep_segments with wal_keep_size
 ...