diff --git a/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java b/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java
index 1d647d1..2e79c35 100644
--- a/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java
+++ b/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java
@@ -132,6 +132,7 @@ public class BilibiliAPI implements BilibiliServiceProvider, BilibiliCaptchaProv
                 .addInterceptor(new AddFixedParamsInterceptor(
                         "_device", "android",
                         "_hwid", bilibiliClientProperties.getHardwareId(),
+                        "actionKey", "appkey",
                         "build", bilibiliClientProperties.getBuild(),
                         "mobi_app", "android",
                         "platform", "android",
diff --git a/src/main/java/com/hiczp/bilibili/api/live/LiveService.java b/src/main/java/com/hiczp/bilibili/api/live/LiveService.java
index 790c59f..f62e15b 100644
--- a/src/main/java/com/hiczp/bilibili/api/live/LiveService.java
+++ b/src/main/java/com/hiczp/bilibili/api/live/LiveService.java
@@ -230,14 +230,9 @@ public interface LiveService {
     //瓜子商店
     //侧拉抽屉 -> 直播中心 -> 瓜子商店 -> 银瓜子兑换 -> 硬币银瓜子互换 ->　兑换硬币
     //将 700 银瓜子兑换为 1 硬币, 每个用户每天只能换一次
-    //actionKey 是固定值, 为 "appkey"
     //已经兑换过时返回 403
     @POST("AppExchange/silver2coin")
-    Call<Silver2CoinResponseEntity> silver2Coin(@Query("actionKey") String actionKey);
-
-    default Call<Silver2CoinResponseEntity> silver2Coin() {
-        return silver2Coin("appkey");
-    }
+    Call<Silver2CoinResponseEntity> silver2Coin();
 
     //扭蛋机
     //侧拉抽屉 -> 直播中心 -> 扭蛋机 -> 普通扭蛋