diff --git a/README.md b/README.md
index 7161542..4ca4850 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ curl -sfL https://get.k3s.io | INSTALL_K3S_VERSION=v1.28.7+k3s1 sh -s - --write-
 ### Install AWX Operator
 
 > [!NOTE]
-> From AWX Operator 2.13.0, Default PostgreSQL version is bumped from 13 to 15. If you have a plan to upgrade existing AWX Operator and AWX, refer to [📝Tips: Upgrade AWX Operator and AWX](tips/upgrade-operator.md) to perform additional tasks to database migration.
+> From AWX Operator 2.13.0, Default PostgreSQL version is bumped from 13 to 15. If you have a plan to upgrade existing AWX Operator and AWX, refer to [📝Tips: Upgrade AWX Operator and AWX](tips/upgrade-operator.md) to perform additional tasks to migrate database.
 
 Clone this repository and change directory.
 
diff --git a/tips/troubleshooting.md b/tips/troubleshooting.md
index 168a887..d2769d5 100644
--- a/tips/troubleshooting.md
+++ b/tips/troubleshooting.md
@@ -296,7 +296,7 @@ $ kubectl -n awx logs statefulset/awx-postgres-13
 mkdir: cannot create directory '/var/lib/postgresql/data': Permission denied
 
 # On PostgreSQL 15
-$ kubectl -n awx logs statefulset/awx-postgres-13
+$ kubectl -n awx logs statefulset/awx-postgres-15
 mkdir: cannot create directory '/var/lib/pgsql/data/userdata': Permission denied
 ```
 
diff --git a/tips/upgrade-operator.md b/tips/upgrade-operator.md
index 9727b86..135b96a 100644
--- a/tips/upgrade-operator.md
+++ b/tips/upgrade-operator.md
@@ -78,7 +78,7 @@ If you are using AWX Operator `0.14.0` or later and want to upgrade to newer ver
 > ```bash
 > # Required only when upgrading from 0.25.0 or earlier to 0.26.0 or later
 > sudo mkdir -p /data/postgres-13
-> sudo chmod 700 /data/postgres-13
+> sudo chmod 755 /data/postgres-13
 > cat <<EOF > pv-postgres-13.yaml
 > ---
 > apiVersion: v1