diff --git a/modules/db-for-postgre-sql/flexible-server/README.md b/modules/db-for-postgre-sql/flexible-server/README.md
index 404f60141f..7791c45f93 100644
--- a/modules/db-for-postgre-sql/flexible-server/README.md
+++ b/modules/db-for-postgre-sql/flexible-server/README.md
@@ -74,7 +74,7 @@ This module deploys a DBforPostgreSQL Flexible Server.
 | `roleAssignments` | array | `[]` |  | Array of role assignment objects that contain the 'roleDefinitionIdOrName' and 'principalId' to define RBAC role assignments on this resource. In the roleDefinitionIdOrName attribute, you can provide either the display name of the role definition, or its fully qualified ID in the following format: '/providers/Microsoft.Authorization/roleDefinitions/c2f4ef07-c644-48eb-af81-4b1b4947fb11'. |
 | `storageSizeGB` | int | `32` | `[32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384]` | Max storage allowed for a server. |
 | `tags` | object | `{object}` |  | Tags of the resource. |
-| `version` | string | `'13'` | `[11, 12, 13, 14]` | PostgreSQL Server version. |
+| `version` | string | `'15'` | `[11, 12, 13, 14, 15]` | PostgreSQL Server version. |
 
 
 ### Parameter Usage: `roleAssignments`
diff --git a/modules/db-for-postgre-sql/flexible-server/main.bicep b/modules/db-for-postgre-sql/flexible-server/main.bicep
index ce8495ec2a..e0bdf32790 100644
--- a/modules/db-for-postgre-sql/flexible-server/main.bicep
+++ b/modules/db-for-postgre-sql/flexible-server/main.bicep
@@ -67,9 +67,10 @@ param storageSizeGB int = 32
   '12'
   '13'
   '14'
+  '15'
 ])
 @description('Optional. PostgreSQL Server version.')
-param version string = '13'
+param version string = '15'
 
 @allowed([
   'Disabled'
diff --git a/modules/db-for-postgre-sql/flexible-server/main.json b/modules/db-for-postgre-sql/flexible-server/main.json
index 64868b74c1..9c888cf364 100644
--- a/modules/db-for-postgre-sql/flexible-server/main.json
+++ b/modules/db-for-postgre-sql/flexible-server/main.json
@@ -4,8 +4,8 @@
   "metadata": {
     "_generator": {
       "name": "bicep",
-      "version": "0.20.4.51522",
-      "templateHash": "1801764410852262795"
+      "version": "0.21.1.54444",
+      "templateHash": "9979434012524626426"
     },
     "name": "DBforPostgreSQL Flexible Servers",
     "description": "This module deploys a DBforPostgreSQL Flexible Server.",
@@ -108,12 +108,13 @@
     },
     "version": {
       "type": "string",
-      "defaultValue": "13",
+      "defaultValue": "15",
       "allowedValues": [
         "11",
         "12",
         "13",
-        "14"
+        "14",
+        "15"
       ],
       "metadata": {
         "description": "Optional. PostgreSQL Server version."
@@ -477,8 +478,8 @@
           "metadata": {
             "_generator": {
               "name": "bicep",
-              "version": "0.20.4.51522",
-              "templateHash": "11735622953674778447"
+              "version": "0.21.1.54444",
+              "templateHash": "4898014763123062752"
             }
           },
           "parameters": {
@@ -623,8 +624,8 @@
           "metadata": {
             "_generator": {
               "name": "bicep",
-              "version": "0.20.4.51522",
-              "templateHash": "7432917940199201712"
+              "version": "0.21.1.54444",
+              "templateHash": "16660732763595780206"
             },
             "name": "DBforPostgreSQL Flexible Server Databases",
             "description": "This module deploys a DBforPostgreSQL Flexible Server Database.",
@@ -762,8 +763,8 @@
           "metadata": {
             "_generator": {
               "name": "bicep",
-              "version": "0.20.4.51522",
-              "templateHash": "3071080362723739241"
+              "version": "0.21.1.54444",
+              "templateHash": "7935033505380784919"
             },
             "name": "DBforPostgreSQL Flexible Server Firewall Rules",
             "description": "This module deploys a DBforPostgreSQL Flexible Server Firewall Rule.",
@@ -889,8 +890,8 @@
           "metadata": {
             "_generator": {
               "name": "bicep",
-              "version": "0.20.4.51522",
-              "templateHash": "5586008567080780040"
+              "version": "0.21.1.54444",
+              "templateHash": "10954863077388190830"
             },
             "name": "DBforPostgreSQL Flexible Server Configurations",
             "description": "This module deploys a DBforPostgreSQL Flexible Server Configuration.",