diff --git a/pom.xml b/pom.xml
index fdc5654..a6232ae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,7 +40,7 @@
     <name>DashScope Java SDK</name>
     <groupId>com.alibaba</groupId>
     <artifactId>dashscope-sdk-java</artifactId>
-    <version>2.23.2</version>
+    <version>2.23.3</version>
 
     <properties>
         <maven.compiler.source>8</maven.compiler.source>
diff --git a/src/main/java/com/alibaba/dashscope/Version.java b/src/main/java/com/alibaba/dashscope/Version.java
index 9d0fde9..c94315a 100644
--- a/src/main/java/com/alibaba/dashscope/Version.java
+++ b/src/main/java/com/alibaba/dashscope/Version.java
@@ -3,5 +3,5 @@
 package com.alibaba.dashscope;
 
 public final class Version {
-  public static final String version = "2.23.2";
+  public static final String version = "2.23.3";
 }
diff --git a/src/main/java/com/alibaba/dashscope/protocol/HalfDuplexRequest.java b/src/main/java/com/alibaba/dashscope/protocol/HalfDuplexRequest.java
index e361639..2d1852e 100644
--- a/src/main/java/com/alibaba/dashscope/protocol/HalfDuplexRequest.java
+++ b/src/main/java/com/alibaba/dashscope/protocol/HalfDuplexRequest.java
@@ -126,7 +126,9 @@ public HttpRequest getHttpRequest() throws NoApiKeyException, ApiException {
         || getHttpMethod() == HttpMethod.DELETE) {
       JsonObject body = param.getHttpBody();
       if (isEncryptRequest() && body != null) { // we need to encrypt the input
-        this.encryptionConfig = EncryptionUtils.generateEncryptionConfig(param.getApiKey());
+        this.encryptionConfig =
+            EncryptionUtils.generateEncryptionConfig(
+                param.getApiKey(), serviceOption.getBaseHttpUrl());
         requestHeaders.put("X-DashScope-EncryptionKey", getEncryptionKeyHeader(encryptionConfig));
         JsonObject input = body.get("input").getAsJsonObject();
         String chiperInput =
diff --git a/src/main/java/com/alibaba/dashscope/utils/EncryptionUtils.java b/src/main/java/com/alibaba/dashscope/utils/EncryptionUtils.java
index 9bdb072..38ba2da 100644
--- a/src/main/java/com/alibaba/dashscope/utils/EncryptionUtils.java
+++ b/src/main/java/com/alibaba/dashscope/utils/EncryptionUtils.java
@@ -151,7 +151,14 @@ public static String AESDecrypt(String cipherText, SecretKey secretKey, byte[] i
   /** Generate a EncryptionConfig. */
   public static EncryptionConfig generateEncryptionConfig(String apiKey)
       throws ApiException, NoApiKeyException {
-    EncryptionKeys encryptionKeys = new EncryptionKeys();
+    return generateEncryptionConfig(apiKey, null);
+  }
+
+  /** Generate a EncryptionConfig, fetching the public key from the given base URL. */
+  public static EncryptionConfig generateEncryptionConfig(String apiKey, String baseHttpUrl)
+      throws ApiException, NoApiKeyException {
+    EncryptionKeys encryptionKeys =
+        baseHttpUrl != null ? new EncryptionKeys(baseHttpUrl) : new EncryptionKeys();
     EncryptionKey encryptionKey = encryptionKeys.get(apiKey);
     byte[] iv = new byte[12];
     new SecureRandom().nextBytes(iv);