diff --git a/README.md b/README.md
index c162783..23ae4a2 100644
--- a/README.md
+++ b/README.md
@@ -207,6 +207,7 @@ This solution only supports the regions where Amazon Bedrock is available:
 - US East (N. Virginia): us-east-1
 - US West (Oregon): us-west-2
 - Asia Pacific (Singapore): ap-southeast-1
+- Asia Pacific (Sydney): ap-southeast-2
 - Asia Pacific (Tokyo): ap-northeast-1
 - Europe (Frankfurt): eu-central-1
 - Europe (Paris): eu-west-3
diff --git a/README_CN.md b/README_CN.md
index 98dbfcf..bdee1a7 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -212,6 +212,7 @@ print(response)
 - 美国东部(弗吉尼亚北部)：us-east-1
 - 美国西部(俄勒冈州)：us-west-2
 - 亚太地区(新加坡)：ap-southeast-1
+- 亚太地区(悉尼)：ap-southeast-2
 - 亚太地区(东京)：ap-northeast-1
 - 欧洲(法兰克福)：eu-central-1
 - 欧洲(巴黎)：eu-west-3
diff --git a/deployment/BedrockProxy.template b/deployment/BedrockProxy.template
index 5cb3ac3..776ac9b 100644
--- a/deployment/BedrockProxy.template
+++ b/deployment/BedrockProxy.template
@@ -1,5 +1,6 @@
 {
   "Description": "Bedrock Access Gateway - OpenAI-compatible RESTful APIs for Amazon Bedrock",
+  "Transform": "AWS::LanguageExtensions",
   "Parameters": {
     "ApiKeyParam": {
       "Type": "String",
@@ -326,44 +327,9 @@
             "Fn::Join": [
               "",
               [
+                "366590864501.dkr.ecr.",
                 {
-                  "Fn::Select": [
-                    4,
-                    {
-                      "Fn::Split": [
-                        ":",
-                        {
-                          "Fn::FindInMap": [
-                            "ProxyRegionTable03E5BEB3",
-                            {
-                              "Ref": "AWS::Region"
-                            },
-                            "repoArn"
-                          ]
-                        }
-                      ]
-                    }
-                  ]
-                },
-                ".dkr.ecr.",
-                {
-                  "Fn::Select": [
-                    3,
-                    {
-                      "Fn::Split": [
-                        ":",
-                        {
-                          "Fn::FindInMap": [
-                            "ProxyRegionTable03E5BEB3",
-                            {
-                              "Ref": "AWS::Region"
-                            },
-                            "repoArn"
-                          ]
-                        }
-                      ]
-                    }
-                  ]
+                  "Ref": "AWS::Region"
                 },
                 ".",
                 {
@@ -387,7 +353,10 @@
                 {
                   "Ref": "AWS::Region"
                 },
-                "model"
+                "model",
+                {
+                  "DefaultValue": "anthropic.claude-3-sonnet-20240229-v1:0"
+                }
               ]
             },
             "DEFAULT_EMBEDDING_MODEL": "cohere.embed-multilingual-v3"
@@ -553,28 +522,16 @@
   "Mappings": {
     "ProxyRegionTable03E5BEB3": {
       "us-east-1": {
-        "repoArn": "arn:aws:ecr:us-east-1:366590864501:repository/bedrock-proxy-api",
-        "model": "anthropic.claude-3-sonnet-20240229-v1:0"
-      },
-      "us-west-2": {
-        "repoArn": "arn:aws:ecr:us-west-2:366590864501:repository/bedrock-proxy-api",
         "model": "anthropic.claude-3-sonnet-20240229-v1:0"
       },
       "ap-southeast-1": {
-        "repoArn": "arn:aws:ecr:ap-southeast-1:366590864501:repository/bedrock-proxy-api",
         "model": "anthropic.claude-v2"
       },
       "ap-northeast-1": {
-        "repoArn": "arn:aws:ecr:ap-northeast-1:366590864501:repository/bedrock-proxy-api",
         "model": "anthropic.claude-v2:1"
       },
       "eu-central-1": {
-        "repoArn": "arn:aws:ecr:eu-central-1:366590864501:repository/bedrock-proxy-api",
         "model": "anthropic.claude-v2:1"
-      },
-      "eu-west-3": {
-        "repoArn": "arn:aws:ecr:eu-west-3:366590864501:repository/bedrock-proxy-api",
-        "model": "anthropic.claude-3-sonnet-20240229-v1:0"
       }
     }
   },
diff --git a/deployment/BedrockProxyFargate.template b/deployment/BedrockProxyFargate.template
index 303e640..b6c5e9e 100644
--- a/deployment/BedrockProxyFargate.template
+++ b/deployment/BedrockProxyFargate.template
@@ -1,5 +1,6 @@
 {
   "Description": "Bedrock Access Gateway - OpenAI-compatible RESTful APIs for Amazon Bedrock",
+  "Transform": "AWS::LanguageExtensions",
   "Parameters": {
     "ApiKeyParam": {
       "Type": "String",
@@ -267,12 +268,15 @@
               ],
               "Effect": "Allow",
               "Resource": {
-                "Fn::FindInMap": [
-                  "ProxyRegionTable03E5BEB3",
-                  {
-                    "Ref": "AWS::Region"
-                  },
-                  "repoArn"
+                "Fn::Join": [
+                  "",
+                  [
+                    "arn:aws:ecr:",
+                    {
+                      "Ref": "AWS::Region"
+                    },
+                    ":366590864501:repository/bedrock-proxy-api-ecs"
+                  ]
                 ]
               }
             },
@@ -420,7 +424,10 @@
                     {
                       "Ref": "AWS::Region"
                     },
-                    "model"
+                    "model",
+                    {
+                      "DefaultValue": "anthropic.claude-3-sonnet-20240229-v1:0"
+                    }
                   ]
                 }
               },
@@ -434,44 +441,9 @@
               "Fn::Join": [
                 "",
                 [
+                  "366590864501.dkr.ecr.",
                   {
-                    "Fn::Select": [
-                      4,
-                      {
-                        "Fn::Split": [
-                          ":",
-                          {
-                            "Fn::FindInMap": [
-                              "ProxyRegionTable03E5BEB3",
-                              {
-                                "Ref": "AWS::Region"
-                              },
-                              "repoArn"
-                            ]
-                          }
-                        ]
-                      }
-                    ]
-                  },
-                  ".dkr.ecr.",
-                  {
-                    "Fn::Select": [
-                      3,
-                      {
-                        "Fn::Split": [
-                          ":",
-                          {
-                            "Fn::FindInMap": [
-                              "ProxyRegionTable03E5BEB3",
-                              {
-                                "Ref": "AWS::Region"
-                              },
-                              "repoArn"
-                            ]
-                          }
-                        ]
-                      }
-                    ]
+                    "Ref": "AWS::Region"
                   },
                   ".",
                   {
@@ -778,28 +750,16 @@
   "Mappings": {
     "ProxyRegionTable03E5BEB3": {
       "us-east-1": {
-        "repoArn": "arn:aws:ecr:us-east-1:366590864501:repository/bedrock-proxy-api-ecs",
-        "model": "anthropic.claude-3-sonnet-20240229-v1:0"
-      },
-      "us-west-2": {
-        "repoArn": "arn:aws:ecr:us-west-2:366590864501:repository/bedrock-proxy-api-ecs",
         "model": "anthropic.claude-3-sonnet-20240229-v1:0"
       },
       "ap-southeast-1": {
-        "repoArn": "arn:aws:ecr:ap-southeast-1:366590864501:repository/bedrock-proxy-api-ecs",
         "model": "anthropic.claude-v2"
       },
       "ap-northeast-1": {
-        "repoArn": "arn:aws:ecr:ap-northeast-1:366590864501:repository/bedrock-proxy-api-ecs",
         "model": "anthropic.claude-v2:1"
       },
       "eu-central-1": {
-        "repoArn": "arn:aws:ecr:eu-central-1:366590864501:repository/bedrock-proxy-api-ecs",
         "model": "anthropic.claude-v2:1"
-      },
-      "eu-west-3": {
-        "repoArn": "arn:aws:ecr:eu-west-3:366590864501:repository/bedrock-proxy-api-ecs",
-        "model": "anthropic.claude-3-sonnet-20240229-v1:0"
       }
     }
   },