diff --git a/npps4/data/schema.py b/npps4/data/schema.py
index ef109c2..efdac9d 100644
--- a/npps4/data/schema.py
+++ b/npps4/data/schema.py
@@ -197,7 +197,9 @@ def exchange_item_id(self) -> int:
 
 
 class SerializedServerData(pydantic.BaseModel):
-    json_schema_link: pydantic.json_schema.SkipJsonSchema[str | None] = pydantic.Field(default=None, alias="$schema")
+    json_schema_link: pydantic.json_schema.SkipJsonSchema[str | None] = pydantic.Field(
+        default=None, validation_alias="$schema", serialization_alias="$schema"
+    )
     badwords: list[pydantic.Base64UrlStr]
     achievement_reward: list[AchievementReward]
     live_unit_drop_chance: LiveUnitDropChance