diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Extensions/WechatWorkClientExecuteCgibinServiceExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Extensions/WechatWorkClientExecuteCgibinServiceExtensions.cs
index 33419c61..da47a48d 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/Extensions/WechatWorkClientExecuteCgibinServiceExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Extensions/WechatWorkClientExecuteCgibinServiceExtensions.cs
@@ -30,7 +30,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work
             IFlurlRequest flurlReq = client
                 .CreateRequest(request, HttpMethod.Post, "cgi-bin", "service", "get_provider_token");
 
-            var requestData = new { corpid = client.Credentials.CorpId, provider_secret = client.Credentials.AgentSecret };
+            var requestData = new { corpid = client.Credentials.CorpId, provider_secret = client.Credentials.ProviderSecret };
             return await client.SendRequestWithJsonAsync<Models.CgibinServiceGetProviderTokenResponse>(flurlReq, data: requestData, cancellationToken: cancellationToken);
         }