diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadApacheHttpRequestExecutor.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadApacheHttpRequestExecutor.java
index 3c08b1346..d11591edf 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadApacheHttpRequestExecutor.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadApacheHttpRequestExecutor.java
@@ -46,7 +46,7 @@ public class MaterialVoiceAndImageDownloadApacheHttpRequestExecutor extends Mate
       // 下载媒体文件出错
       byte[] responseContent = IOUtils.toByteArray(inputStream);
       String responseContentString = new String(responseContent, StandardCharsets.UTF_8);
-      if (responseContentString.length() < 100) {
+      if (responseContentString.length() <= 215) {
         try {
           WxError wxError = WxGsonBuilder.create().fromJson(responseContentString, WxError.class);
           if (wxError.getErrorCode() != 0) {
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadJoddHttpRequestExecutor.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadJoddHttpRequestExecutor.java
index e4da2004e..c946e9b4b 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadJoddHttpRequestExecutor.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadJoddHttpRequestExecutor.java
@@ -42,7 +42,7 @@ public class MaterialVoiceAndImageDownloadJoddHttpRequestExecutor extends Materi
       // 下载媒体文件出错
       byte[] responseContent = IOUtils.toByteArray(inputStream);
       String responseContentString = new String(responseContent, StandardCharsets.UTF_8);
-      if (responseContentString.length() < 100) {
+      if (responseContentString.length() <= 215) {
         try {
           WxError wxError = WxGsonBuilder.create().fromJson(responseContentString, WxError.class);
           if (wxError.getErrorCode() != 0) {
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadOkhttpRequestExecutor.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadOkhttpRequestExecutor.java
index ba2f36967..b77958a4e 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadOkhttpRequestExecutor.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/requestexecuter/material/MaterialVoiceAndImageDownloadOkhttpRequestExecutor.java
@@ -10,6 +10,7 @@ import me.chanjar.weixin.common.util.json.WxGsonBuilder;
 import okhttp3.*;
 import okio.BufferedSink;
 import okio.Okio;
+import org.apache.commons.io.IOUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -35,14 +36,12 @@ public class MaterialVoiceAndImageDownloadOkhttpRequestExecutor extends Material
     Request request = new Request.Builder().url(uri).get().post(requestBody).build();
     Response response = client.newCall(request).execute();
     String contentTypeHeader = response.header("Content-Type");
-    if ("text/plain".equals(contentTypeHeader) || "application/json; charset=utf-8".equals(contentTypeHeader)) {
+    if ("text/plain".equals(contentTypeHeader) || "application/json; charset=utf-8".equals(contentTypeHeader)
+      || "application/json; encoding=utf-8".equals(contentTypeHeader)) {
       String responseContent = response.body().string();
       throw new WxErrorException(WxError.fromJson(responseContent, WxType.MP));
     }
-
-    try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); BufferedSink sink = Okio.buffer(Okio.sink(outputStream))) {
-      sink.writeAll(response.body().source());
-      return new ByteArrayInputStream(outputStream.toByteArray());
-    }
+    byte[] responseContent = IOUtils.toByteArray(response.body().source().inputStream());
+    return new ByteArrayInputStream(responseContent);
   }
 }