diff --git a/akasha/client.py b/akasha/client.py
index 6ea30db..21f0acf 100644
--- a/akasha/client.py
+++ b/akasha/client.py
@@ -242,21 +242,15 @@ async def get_artifacts(self, uid: int, md5: str, *, use_cache: bool = True) ->
         data = await self._request(f"artifacts/{uid}/{md5}", use_cache=use_cache)
         return [Artifact(**artifact) for artifact in data]
 
-    async def get_categories(self, character_name: str) -> list[LeaderboardCategory]:
-        """Get leaderboard categories of a character based on their name.
+    async def get_categories(self, character_id: str) -> list[LeaderboardCategory]:
+        """Get leaderboard categories of a character based on their ID.
 
         Args:
-            character_name: The name of the character.
+            character_id: The character ID.
         """
         data = await self._request(
             "v2/leaderboards/categories",
             use_cache=True,
-            params={
-                "characterName": [character_name],
-                "sort": "count",
-                "order": "-1",
-                "size": "20",
-                "page": "1",
-            },
+            params={"characterId": character_id},
         )
         return [LeaderboardCategory(**category) for category in data]
diff --git a/tests/models/test_category.py b/tests/models/test_category.py
index e8f666a..2bf7d45 100644
--- a/tests/models/test_category.py
+++ b/tests/models/test_category.py
@@ -3,4 +3,4 @@
 
 async def test_get_categories() -> None:
     async with akasha.AkashaAPI() as api:
-        await api.get_categories("Clorinde")
+        await api.get_categories("10000098")