diff --git a/data/mods/agoldenexperience/formats-data.ts b/data/mods/agoldenexperience/formats-data.ts
index 2dbfaed948..c67933b79d 100644
--- a/data/mods/agoldenexperience/formats-data.ts
+++ b/data/mods/agoldenexperience/formats-data.ts
@@ -3591,7 +3591,7 @@ export const FormatsData: { [k: string]: SpeciesFormatsData; } = {
 		tier: "Illegal",
 	},
 	ribombeemega: {
-		tier: "OU",
+		tier: "UU",
 		doublesTier: "(DUU)",
 	},
 	rockruff: {