diff --git a/CHANGELOG.md b/CHANGELOG.md
index d74a8718..093d63f8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,4 +11,8 @@
 - [feat:optimize project structure and checkstyle](https://github.com/Tencent/spring-cloud-tencent/pull/56)
 - [feat:divide storage and transfer of metadata.](https://github.com/Tencent/spring-cloud-tencent/pull/63)
 - [feat:support polaris config center.](https://github.com/Tencent/spring-cloud-tencent/pull/69)
+- [feat:optimize metadata module.](https://github.com/Tencent/spring-cloud-tencent/pull/70)
+- [feat: optimize pom dependency and demo](https://github.com/Tencent/spring-cloud-tencent/pull/71)
+- [feat:upgrade polaris version to 1.3.0.](https://github.com/Tencent/spring-cloud-tencent/pull/72)
+
 
diff --git a/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/constant/RateLimitConstant.java b/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/constant/RateLimitConstant.java
index c5fde4af..5c96b864 100644
--- a/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/constant/RateLimitConstant.java
+++ b/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/constant/RateLimitConstant.java
@@ -13,6 +13,7 @@
  * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
  * CONDITIONS OF ANY KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations under the License.
+ *
  */
 
 package com.tencent.cloud.polaris.ratelimit.constant;
@@ -34,7 +35,7 @@ public final class RateLimitConstant {
 	/**
 	 * Info of rate limit.
 	 */
-	public static String QUOTA_LIMITED_INFO = "request blocked by polaris, reason is ";
+	public static String QUOTA_LIMITED_INFO = "The request is deny by rate limit because the throttling threshold is reached";
 
 	private RateLimitConstant() {
 	}
diff --git a/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckServletFilter.java b/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckServletFilter.java
index dd19def5..c436272a 100644
--- a/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckServletFilter.java
+++ b/spring-cloud-starter-tencent-polaris-ratelimit/src/main/java/com/tencent/cloud/polaris/ratelimit/filter/QuotaCheckServletFilter.java
@@ -13,6 +13,7 @@
  * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
  * CONDITIONS OF ANY KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations under the License.
+ *
  */
 
 package com.tencent.cloud.polaris.ratelimit.filter;
@@ -76,8 +77,7 @@ public class QuotaCheckServletFilter extends OncePerRequestFilter {
 					localNamespace, localService, 1, labels, null);
 			if (quotaResponse.getCode() == QuotaResultCode.QuotaResultLimited) {
 				response.setStatus(TOO_MANY_REQUESTS.value());
-				response.getWriter().write(
-						RateLimitConstant.QUOTA_LIMITED_INFO + quotaResponse.getInfo());
+				response.getWriter().write(RateLimitConstant.QUOTA_LIMITED_INFO);
 			}
 			else {
 				filterChain.doFilter(request, response);
diff --git a/spring-cloud-tencent-dependencies/pom.xml b/spring-cloud-tencent-dependencies/pom.xml
index 3e87e058..eb776422 100644
--- a/spring-cloud-tencent-dependencies/pom.xml
+++ b/spring-cloud-tencent-dependencies/pom.xml
@@ -63,7 +63,7 @@
 
     <properties>
         <revision>1.2.0-Hoxton.SR9-SNAPSHOT</revision>
-        <polaris.version>1.3.0-SNAPSHOT</polaris.version>
+        <polaris.version>1.3.0</polaris.version>
         <powermock.version>2.0.0</powermock.version>
 
         <!-- Maven Plugin Versions -->
diff --git a/spring-cloud-tencent-examples/polaris-circuitbreaker-example/polaris-circuitbreaker-example-a/src/main/java/com/tencent/cloud/polaris/circuitbreaker/example/ServiceA.java b/spring-cloud-tencent-examples/polaris-circuitbreaker-example/polaris-circuitbreaker-example-a/src/main/java/com/tencent/cloud/polaris/circuitbreaker/example/ServiceA.java
index bf77eccc..1c96db6c 100644
--- a/spring-cloud-tencent-examples/polaris-circuitbreaker-example/polaris-circuitbreaker-example-a/src/main/java/com/tencent/cloud/polaris/circuitbreaker/example/ServiceA.java
+++ b/spring-cloud-tencent-examples/polaris-circuitbreaker-example/polaris-circuitbreaker-example-a/src/main/java/com/tencent/cloud/polaris/circuitbreaker/example/ServiceA.java
@@ -13,12 +13,14 @@
  * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
  * CONDITIONS OF ANY KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations under the License.
+ *
  */
 
 package com.tencent.cloud.polaris.circuitbreaker.example;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.loadbalancer.LoadBalanced;
 import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.context.annotation.Bean;
 import org.springframework.web.client.RestTemplate;
@@ -37,6 +39,7 @@ public class ServiceA {
 	}
 
 	@Bean
+	@LoadBalanced
 	public RestTemplate restTemplate() {
 		return new RestTemplate();
 	}