diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/yggdrasil/YggdrasilService.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/yggdrasil/YggdrasilService.java
index ef3b69562..8122515b9 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/yggdrasil/YggdrasilService.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/yggdrasil/YggdrasilService.java
@@ -269,5 +269,5 @@ public class YggdrasilService {
             .registerTypeAdapterFactory(ValidationTypeAdapterFactory.INSTANCE)
             .create();
 
-    public static final String PURCHASE_URL = "https://www.microsoft.com/store/productId/9NXP44L49SHJ";
+    public static final String PURCHASE_URL = "https://www.microsoft.com/store/productid/9nxp44l49shj";
 }